worth 25 points
Mecayla harvests oysters from the shallow waters of the marsh near her home. She eats the shellfish three times a week. Recent water quality tests show moderate levels of heavy metals in the river and marsh. What is the most likely outcome of this pollutant on the oysters Mecayla harvests?
Heavy metals will bioaccumulate in the oysters.
There will be fewer oysters to harvest in the marsh.
Metals are water soluble, so oysters will be safe.
Oysters will suffer from biomagnification.
Answers
Answer:
the answer is Heavy metals will bioaccumulate in the oysters.
Explanation: i took the test
Related Questions
Water and the Earth 1:Question 3
In the water cycle, gravity is a factor that pulls things down. Which of
these processes in the water cycle is helped by gravity?
Select one:
O
Condensation
O
Transpiration
O
Runoff
O
Evaporation
Answers
Answer:
Runoff
Explanation:
The other answers involve the water particles rising to the clouds. So those processes work against gravity and not with it. Runoff uses gravity to flow back into the ocean or large body’s of water.
A gap in the geologic record that occurs when sedimentary rocks cover an eroded surface is called a(n)
*
1 point
Intrusion
Unconformity
Fault
Extrusion
Answers
role of all four types of lipids: fats, phospholipids, waxes, and steroids.
Answers
The four types of lipids, namely fats, phospholipids, waxes, and steroids, play distinct roles in various biological processes. Fats are primarily involved in energy storage, while phospholipids form the structural basis of cell membranes. Waxes provide protection and waterproofing for plants and animals, and steroids serve as signaling molecules and are involved in various physiological functions.
1. Fats: Fats, also known as triglycerides, are a type of lipid that play a crucial role in energy storage. They are composed of glycerol and three fatty acid chains. Fats are stored in adipose tissue and serve as a long-term energy reserve. During times of energy deficiency, fats are broken down through a process called lipolysis to release energy.
2. Phospholipids: Phospholipids are a major component of cell membranes. They consist of a glycerol molecule, two fatty acid chains, and a phosphate group. The unique structure of phospholipids allows them to form a lipid bilayer in cell membranes, with the hydrophobic fatty acid tails facing inward and the hydrophilic phosphate heads facing outward. This arrangement creates a selectively permeable barrier that controls the movement of substances in and out of the cell.
3. Waxes: Waxes are a type of lipid that serve protective functions in both plants and animals. They are composed of long-chain fatty acids and a long-chain alcohol. In plants, waxes form a waterproof coating on the outer surfaces of leaves, stems, and fruits, preventing excessive water loss and providing protection against pathogens. In animals, waxes are found in structures such as the ear canal, providing lubrication and protection against foreign particles.
4. Steroids: Steroids are a class of lipids characterized by a four-ring structure. They have diverse roles in the body, including serving as signaling molecules and regulating various physiological processes. For example, cholesterol, a type of steroid, is a precursor for the synthesis of steroid hormones such as estrogen, testosterone, and cortisol. These hormones play essential roles in reproduction, development, and metabolism.
Overall, the four types of lipids - fats, phospholipids, waxes, and steroids - each have distinct functions and contribute to various biological processes in organisms.
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Which of the following influences the amount of ozone pollution near Earth's surface?
O An area's weather patterns
O Nearby water resources
O Volcanic eruptions
O Plants undergoing photosynthesis
Answers
All the four options can lead to ozone pollution near the earth's surface.
Ozone Pollution- Increased wheezing, coughing, and chest tightness are brought on by ozone pollution, which results from hydrocarbon and nitrogen oxide emissions from cars and other sources mixed with sunshine.
Plants undergoing photosynthesis- Significant producer of VOCs (Volatile Organic Compounds) is woody vegetation. Before they react to generate ozone in the atmosphere, where it can linger for several weeks, NOx and VOCs can be transported over great distances by local weather patterns.Volcanic eruptions- Volcanoes probably generate enough bromine to deplete the ozone layer locally and alter the chemistry of the stratosphere. According to estimates, 1 to 5 percent of ozone damage is thought to be caused by volcanoes, 15 to 20 percent by other natural sources, and a staggering 75 to 85 percent by human activity.Water resources- From farms, factories, and towns, streams and rivers transport pollutants like chemicals, fertilizers, and heavy metals into our bays and estuaries, where they are then transported out to sea. The wind also brings in marine waste, particularly plastic, as does water from storm drains and sewage systems.Weather Patterns- As a result of global warming, there will be an increase in more extreme weather, including heat waves, extreme rainfall events, and other phenomena. Because the chemical reactions that produce ozone in the atmosphere take place more often in hot temperatures, heat waves increase the amount of ground-level ozone pollution.To learn more about ozone pollution- https://brainly.com/question/14154063
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Answer:
An area's weather patterns
Explanation:
the teacher told me
Hay is made up of organic compounds. What are the main three elements found in many organic compounds?
Answers
Earthquakes can occur along
___________ lines at __________
boundarie
Answers
Answer:
Earthquakes can occur along fault lines. The second part is on the tip of my tongue but can't remember it.
Explanation:
Answer:
Fault lines, plate bounderies?
Explanation:
i believe it is-
Earthquakes can occur along Fault Lines at Plate boundariesName the plane of action (1) and the axis of rotation (2) when transverse abduction or transverse adduction of the shoulder joint is exhibited.
Answers
Answer: (1) Frontal Plane
(2) Sagittal axis
Explanation: A shoulder joint can do an abduction, which is taking a body part away from the center line or an adduction, which is moving it towards the center line.
In anatomy, a Plane describes the axis along which a movement is made. There are 3 reference planes but for abduction or adduction, it is the frontal plane.
Frontal Plane or coronal plane is perpendicular to the ground and divides the body into dorsal, also known as posterior and ventral or anterior.
In movement, an Axis is a straight line an object or body part rotates.
A shoulder joint rotates at a sagittal axis, i.e., passes horizontally from posterior to anterior.
For this discussion post, I read the article “A creator of ‘CRISPR babies’ nears release from prison, where does embryo editing stand?
This article explained how biophysicist He Jiankui, who used the genome editor CRISPR to create the world's first genetically engineered babies, may be released from prison this week.
His November 2018 announcement about gene editing was well received. Still, Fyodor Urnov sees no circumstance that would justify efforts to modify babies genetically. Urnov supports using CRISPR to fix disease-causing mutations after birth. The work has proceeded with little notice, and oversight measures to stop rogue experiments like He's have stalled. A study showed how CRISPR could get rid of a newly fertilized egg of an extra copy of a chromosome. This problem can lead to Down syndrome and other medical conditions. The initial concerns about designer babies centered on CRISPR's sloppiness. But a study of CRISPR-altered human embryos found 16% had these "unintended editing outcomes" at the targeted DNA, and genetic screening of edited IVF embryos might not catch these errors. Stem cell researcher Dietrich Egli hopes to find a way to start and stop CRISPR at the embryo's single-cell stage. In a preprint posted on bioRxiv on 10 March, Egli's group demonstrated a strategy for trisomy, an errant third chromosome, by targeting an extra paternal or maternal chromosome copy with a CRISPR cut at or near its centromere.
If CRISPR does not correct the trisomy in all of the cells in an early embryo, a natural "rescue mechanism" might eliminate the abnormal cells. However, there are still multiple obstacles to overcome. Researchers are trying to use CRISPR to edit human embryos but need help beyond science. Editing the DNA of egg or sperm precursor cells may avoid some of these hurdles, improving the odds of getting it right. Orwig's team is exploring a different route to creating edited sperm stem cells by reprogramming adult human cells into a stem cell state and trying to coax them partly down the pathway that produces sperm. However, reprogrammed adult cells only survive when placed into newborn animals, which is unrealistic for humans. Scientists say the increased awareness of CRISPR's shortcomings has underscored the recklessness of transplanting edited embryos with today's technology. Still, some scientists are openly advocating for the practice.
find something interesting and 1-2 questions about the summary
Answers
One interesting aspect of the article is the discussion around using CRISPR to edit disease-causing mutations after birth, rather than in embryos.
What is the authenticity if genetically modifying babies ?Fyodor Urnov supports this approach and believes that there is no circumstance that would justify modifying babies genetically. This raises the question of whether there is a moral or ethical line that should not be crossed when it comes to genetic modification of humans, even if it is done to prevent or treat disease.
Another interesting point is the potential use of CRISPR to edit the DNA of egg or sperm precursor cells to avoid some of the hurdles of editing embryos. This raises the question of how this approach would be implemented and regulated, as it involves altering the genetic material of potential future offspring before they are even conceived.
Overall, the article highlights the ongoing debate and ethical considerations around the use of CRISPR for genetic modification in humans, as well as the need for continued research and oversight to ensure that any such use is safe and ethical.
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Which of the following is one of the most rapid ways of determining the general characteristics of a specimen? O Biochemical testing O Phage typing O Microscopic observation O Cultivation and isolation
Answers
Answer:
Microscopic observation
Explanation:
A specimen can directly be observed under a microscope and is the fastest and best method to check the external composition of the specimen in detail. The success of the identification will also depend on how it's handled treated and stored.QUESTION 1
Name the species interaction.
The strangler fig (Ficus crassicuscula) begins as a seed dropped by a bird or monkey into the tree canopy. The seed sprouts and tendrils
grow downward and around the host tree. Finally the tendrils reach the ground where they grow their own root system. As the strangler fig
continues to grow around the host tree, the host often dies either as a result of the fig strangling it or from lack of sun as the strangler fig
shades the host tree. The strangler fig then consumes the nutrients of its decaying host.
OA. Commenalism
OB. Resource Partitioning
OC. Competition
O D. Parasitism
Answers
Interaction between species is called parasitism, as option D shows.
What is parasitism?It is a disharmonious relationship between two living beings.It is a relationship where only one of the individuals benefits while the other suffers harm.A parasite is a living being that takes advantage of another living being's resources, stealing them completely. An example of this is the strangler fig which uses the structure of another plant to get sunlight and nutrients.
The strangler fig does not supply the host plant with anything, but absorbs its nutrients and prevents it from receiving sunlight, causing it to slowly die.
In this case, we can see a clear example of parasitism.
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Which of the following functions of light allows the greatest magnification by a microscope?
a. refraction
O b. diffraction
O c. absorption
O d. reflection
O e. transmission
Answers
transmission
The function of light that allows the greatest magnification by a microscope is the transmission. The correct option is e.
What is a transmission?Transmission of light is when light transmits through a transparent or translucent object it gets transmitted through it and when light is transmitted it is either refracted or scattered.
Light is electromagnetic radiation. It is an agent by which we are able to see the various objects near us. When light transmits through an object, the light which is of the color of the object gets absorbed and all other colors will reflect.
Magnification is an increase in the size of an object through a magnification glass. Light plays an important role in this, due to the transmission of light through the glass, it looks bigger.
Thus, the correct option is e. transmission.
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What causes the earths cycle of the day and night? Select the words from the drop down menus to correctly complete the explanation.
Answers
Answer: The cycle of day and night on Earth is caused by the rotation of the Earth on its axis. As the Earth rotates, different parts of the planet are exposed to the Sun's light, causing daylight in some areas and darkness in others.
TTT 18. All of the following are chemical approaches to control micro-organism excepts: A. Antibiotics B. Disinfectants 19. The scientific name for modern man is C. Antiseptics D. Autoclaving A. Homo erectus B. Homo sapiens 20. In which of the following kingdoms are prokaryotic organisms placed? A. Fungi B. Protest C. Australopithecus D. None C. Planate D. Monera 21. Plants which have true roots, leaves, stem & seeds inside the fruit are A. Gymnosperm C. Mosses D. Ferns B. Angiosperm 22. Which of the following taxonomic groups contains closely related organisms? A. Genus C. Phylum B. Order D. Class 23. Malaria causing single celled parasitic protozoan is called A. Paramecium B. Salmonella C. Mosquito D. Plasmodium 24. Which one of the following kingdoms is consists of eukaryotic organisms such as yeast moulds and mushrooms? A. Ecosystem B. Population 26. Which of the following organism are consumers? A. Photosynthetic B. Chemosynthetic bacteria C. Green plant D. Scavengers Answer the following questions. C. Kingdom monera D. Kingdom plantae A. Kingdom fungi B. Kingdom protista 25. Ecology is a biological science that deals with all of the following except C. organism D. none
Answers
All of the options are chemical approaches to control micro-organism excepts: B Disinfectants
19. The scientific name for modern man is: B. Homo sapiens
20. kingdoms are prokaryotic organisms placed D. Monera
21. Plants which have true roots, leaves, stem & seeds inside the fruit are: B. Angiosperm
22. taxonomic groups contains closely related organisms A. Genus
23. Malaria causing single-celled parasitic protozoan is called: D. Plasmodium
24. kingdoms consists of eukaryotic organisms such as yeast, molds, and mushrooms A. Kingdom fungi
25. Ecology is a biological science that deals with except: D. none
26. The organism that are consumer is D. Scavengers
What is the chemical approaches to control micro-organismDisinfectants are special chemicals that are used to kill germs or prevent them from growing on surfaces or objects. They are not usually used to control microorganisms within living things, unlike antibiotics, antiseptics, and autoclaving, which are all chemicals used to control microorganisms.
Homo sapiens is the fancy name used by scientists to refer to regular, everyday humans This is the species that humans are a part of.
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18. All of the following are chemical approaches to control micro-organism excepts: A. Antibiotics B. Disinfectants
19. The scientific name for modern man is C. Antiseptics D. Autoclaving A. Homo erectus B. Homo sapiens
20. In which of the following kingdoms are prokaryotic organisms placed? A. Fungi B. Protest C. Australopithecus D. None C. Planate D. Monera
21. Plants which have true roots, leaves, stem & seeds inside the fruit are A. Gymnosperm C. Mosses D. Ferns B. Angiosperm
22. Which of the following taxonomic groups contains closely related organisms? A. Genus C. Phylum B. Order D. Class
23. Malaria causing single celled parasitic protozoan is called A. Paramecium B. Salmonella C. Mosquito D. Plasmodium
24. Which one of the following kingdoms is consists of eukaryotic organisms such as yeast moulds and mushrooms? A. Ecosystem B. Population
25. Ecology is a biological science that deals with all of the following except Answer the following questions. C. Kingdom monera D. Kingdom plantae A. Kingdom fungi B. Kingdom protista C. organism D. none
26. Which of the following organism are consumers? A. Photosynthetic B. Chemosynthetic bacteria C. Green plant D. Scavengers
Which is not a major characteristic of life?
1) Homeostasis
2) Structural organization
3) Movement
4) Evolution
5) Energy use
Answers
Answer:
3 Movement
Explanation:
Growth and Reproduction of Life Form
Human body cells have______ pairs of chromosomes
O 23 pairs
O
46 pairs
O 3 pairs
O 6 pairs
Answers
Answer:
23 pairs
Explanation:
In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females
have great day
Which experiment would most likely contain experimental bias? A. A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands. B. A lab performs a test by giving bacterial colonies the same amount of different antibiotics and growing them under the same conditions. C. A chemistry class performs an experiment in which each reaction has the same amount of starting material and begins at the same temperature. D. A student tests the attraction of bees to flowers by placing four different flowers in the same location and counting how many bees visit each.
Answers
Answer:
A
Explanation:
A. A company that makes pain relief medication tests the effectiveness of their own medicine compared to that of three other brands. - Because the company will have a financial interest in this study (they want their own medicine to be the best in order to make more money) there is the possibility for experimental bias. Ideally, this test should be carried out by an independent lab with nothing to gain from the results
B. A lab performs a test by giving bacterial colonies the same amount of different antibiotics and growing them under the same conditions. - This is good experimental design, everything seems to be exactly the same apart from the antibiotics being tested.
C. A chemistry class performs an experiment in which each reaction has the same amount of starting material and begins at the same temperature. - This is good experimental design and there doesn't seem to be any differences that would cause bias.
D. A student tests the attraction of bees to flowers by placing four different flowers in the same location and counting how many bees visit each. - This is good experimental design. The flowers are all in the same location. We assume the only difference is the type of flowers
Natural selection does not
a. Produce the mutations
b. Select those mutations that give an organism an advantage
Answers
Natural selection does not produce the mutations that are in option A, as natural selection is the process by which certain advantageous traits become more common in a population over time because individuals with those traits are more likely to survive and reproduce.
Natural selection does not produce the mutations themselves. Mutations are random changes that occur in an organism's DNA and can happen for various reasons, such as exposure to radiation or mistakes during DNA replication. Natural selection acts on the variation already present in a population, selecting for traits that confer advantages in a given environment and allowing those traits to become more prevalent over time.
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Help please I'll give brainlist
The environment limits population growth by changing birth and death rates. Briefly describe how each environmental factor listed below influences population size. Also, identify each environmental factor as a biotic or abiotic factor
Competitors
Disease
Food
Ph level
Prediction
Soil type
Temperature
Water availability
Answers
Answer:
Disease
Ph level
Water availability
Soil type
Explanation:
How do genes control the production of proteins?
Answers
Why have so many states failed to pass laws to label, GMOs?
Answers
Answer:
Well, GMO seeds sometimes fly into Non-GMO crop fields and slowly take over because they are more successful. Sometimes people passing laws do not care that much about the issue causing many states not to feel the need to label GMO, crops.
which material from the table is a liquid at 50c and a gas at 300c
A. iodine
B. rubidium
C. phosphorus
D. potassium
Answers
Answer:
C. phosphorus
Explanation:
Laetiporus sulphureus also known as chicken of the woods , is a multicellular organism that is heteroph
Answers
Laetiporus sulphureus, or chicken of the woods, is a multicellular organism in the Fungi kingdom. It obtains its nutrition as a heterotroph by decomposing dead wood. It is known for its bright color and spongy texture when cooked.
Laetiporus sulphureus, also known as chicken of the woods, is a multicellular organism that belongs to the kingdom Fungi. It is a heterotroph, meaning it obtains its nutrition by consuming organic matter. Chicken of the woods is a saprophytic fungus, which means it decomposes dead wood and obtains nutrients from it. It is commonly found growing on the trunks of trees, particularly oak and cherry trees.Chicken of the woods is characterized by its vibrant orange or yellow color and its bracket-shaped fruiting bodies. These fruiting bodies consist of layers of spore-producing tubes underneath. The mushroom has a soft and spongy texture when cooked, making it a popular ingredient in various culinary dishes.For more questions on Laetiporus sulphureus
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Describe how the components of a meal containing fried fish and toast bread will be processed as they move through the digestive system of man
Answers
Answer:
Explanation:
When a meal containing fried fish and toast bread is consumed, it goes through a series of processes in the digestive system of a human. Here's a general description of how the components are processed:
1. Mouth: The process of digestion begins in the mouth. Chewing breaks down the toast bread and fish into smaller pieces, while saliva mixes with the food to start the breakdown of carbohydrates.
2. Esophagus: The chewed food, now called a bolus, is swallowed and travels down the esophagus through peristaltic contractions. The esophagus carries the food to the stomach.
3. Stomach: The stomach is responsible for further mechanical and chemical digestion. It mixes the food with stomach acid and digestive enzymes to break down proteins. The fried fish is broken down into smaller pieces through mechanical churning.
4. Small Intestine: The partially digested food leaves the stomach and enters the small intestine. Here, bile from the liver and enzymes from the pancreas break down fats, while other enzymes continue the breakdown of proteins and carbohydrates. Nutrient absorption occurs through the walls of the small intestine and is facilitated by small finger-like projections called villi.
5. Large Intestine: Any remaining undigested food, as well as water and electrolytes, pass into the large intestine. The large intestine absorbs water and electrolytes while forming waste material known as feces.
6. Rectum and Anus: The feces are stored in the rectum until elimination through the anus occurs during a bowel movement.
Throughout this process, various digestive enzymes and gastric juices are secreted at different stages to facilitate the breakdown and absorption of nutrients. The fried fish and toast bread are broken down into smaller molecules, such as proteins, carbohydrates, and fats, which are then absorbed into the bloodstream to provide energy and nourishment for the body.
PLz answer my scientific question
Answers
Answer:
the independent variable is time.the independent variable is time in the second graph because time is the only independent variable.Explanation:
hope this will help :)
Answer:
I would have to say D but I might be wrong.
Explanation:
Sickle cell anemia and albinism are both recessive traits in humans. Imagine that a couple, already pregnant with fraternal twins, has just learned that they (the couple) are both heterozygous for both of these traits. As the couple's genetic counselor, the couple asks you what is the probability of having both of the twins be albino and have sickle-cell anemia.
Answers
Answer:
81/256
Explanation:
By doing a test cross of albinism and sickle cell anemia you'll see that the probability that one child is unaffected by either conditions will be 9/16. Both children would be 9/16 * 9/16.
Since fraternal twins are developed from two separate fertilization events the probability chance will be independent.
What is the effect of the conflicting perspectives?
O The two men become protective of each other.
The two men decide to leave the battlefield.
The two men become unaware of reality.
O The two men separate on the battlefield.
O
Answers
The effect of conflicting perspectives can lead to the separation of the two men on the battlefield. So, option D is the right choice.
When conflicting perspectives arise, the effect can be multifaceted.
Conflicting perspectives create a divergence in opinions, beliefs, or interests between the two men. This can lead to a clash of ideas and viewpoints, causing tension and disagreement.As a result, the two men may become defensive and protective of their own perspectives. They may feel the need to support and defend their point of view, potentially leading to a stronger bond between them as they unite against external opposition.Alternatively, the conflicting perspectives may become too intense, making it difficult for the two men to find common ground or reach a resolution. In such cases, they may decide to leave the battlefield as a way to disengage from the situation and avoid further conflict.Conflicting perspectives can sometimes lead to a narrowing of focus, where the two men become so absorbed in defending their own viewpoint that they become unaware of the broader reality or alternative perspectives. This can limit their ability to consider new information or adapt their positions.In extreme cases, the conflicting perspectives may cause a complete separation between the two men on the battlefield. They may choose to physically distance themselves from each other, creating a physical and emotional divide.It's important to note that the specific effects of conflicting perspectives can vary greatly depending on the individuals involved, the nature of the conflict, and the surrounding circumstances.The right answer iis Option D. The two men separate on the battlefield.
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The complete question may be like:
What is the effect of the conflicting perspectives?
A. The two men become protective of each other.
B. The two men decide to leave the battlefield.
C.The two men become unaware of reality.
D. The two men separate on the battlefield.
Look at this picture of a male wood grouse engaged in a mating display . What form or forms of communication do you see him using to attract a mate?
Answers
A male wood grouse is engaged in a mating display, which can attract the mate in many ways, such as by displaying his plumage, fanning his tail feather, or by producing different kinds of sounds.
What is the significance of attracting a mate?To attract their mates, animals of various species exhibit different behaviors such as changing their color, changing their sounds, releasing chemo attractants, and increasing the size of their bodies so that they can protect the mate.
Hence, a male wood grouse is engaged in a mating display, which can attract the mate in many ways, such as by displaying his plumage, fanning his tail feather, or by producing different kinds of sounds.
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Heat is the _____________ of thermal energy.
A.
transfer
B.
conservation
Answers
Answer:
A transfer
Explanation:
Heat is the transfer of thermal energy from one object to another
Calculate the population density of 900 sheep in a plot of land that is 3.00 km by 2.00km
Answers
The population density of the 900 sheep in the given plot of land is 150 sheep per square kilometer.
The population density of 900 sheep in a plot of land that is 3.00 km by 2.00 km can be calculated by dividing the total number of sheep by the area of the land.
First, we need to calculate the area of the land. The area can be found by multiplying the length and width of the plot of land:
Area = length × width = 3.00 km × 2.00 km = 6.00 km²
Next, we divide the total number of sheep by the area to calculate the population density:
Population Density = Total number of sheep / Area = 900 sheep / 6.00 km²
Performing the calculation, we find:
Population Density = 150 sheep/km²
Therefore, the population density of the 900 sheep in the given plot of land is 150 sheep per square kilometer.
Population density is a measure of the number of individuals (in this case, sheep) per unit area. By dividing the total number of sheep by the area of the land, we obtain the population density in terms of sheep per square kilometer. In this case, the population density is 150 sheep/km², indicating that there are, on average, 150 sheep within each square kilometer of the land.
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There are ____ amino acids?
1
10
20
40
50
100
an infinite number of
Answers
Answer:
there are 20 amino acids