How did the wolves affect the Yellowstone national park?
Answers
Answer:
the wolves effected the park because it was killing off the animals
Explanation:
Related Questions
Which of the following is an example of a nucleic acid?
Select one:
a. RUBISCO
b. ATP
c. NADH
d. RNA
Answers
Answer:
D. RNA
Explanation:
hopes it helps and brainlest please
A marine biologist and cancer researcher worked together to isolate the green fluorescent protein (gfp) gene from a sample of jellyfish dna. scientists have successfully inserted this gene into a cancerous tumor in humans in order for the tumor to glow so it can be more easily removed during surgery. which technology can the scientists use to isolate and extract the gfp gene from the rest of the jellyfish genome for this application? gel electrophoresis polymerase chain reaction artificial selection genetic engineering
Answers
Biotechnology is used by biologists and cancer researchers to isolate green fluorescent protein (GFP) from jellyfish deoxyribonucleic acid (DNA) samples called gel electrophoresis.
Gel electrophoresis is a technique for breaking down a macromolecule by applying a force to the macromolecule to pass through a medium containing a gel assisted by electric power. The working principle of electrophoresis is to separate DNA based on size (molecular weight). This technique is often used in the field of molecular biology to determine the size of a DNA fragment, solve DNA fragments, as well as to test the quality and quantity of samples.
So, to isolate green fluorescent protein (GFP) in jellyfish DNA samples, gel electrophoresis was used.
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___ Phrenic nerve ___ Median nerve ___ Tibial nerve ___ Radial nerve ___ Femoral nerve ___ Ulnar nerve ___ Common fibular nerve ___ Musculocutaneous nerve A. Anterior and lateral leg muscles and skin B. Posterior thigh and leg muscles, foot C. Diaphragm D. Some forearm flexors, most intrinsic hand muscles, skin on medial hand E. Posterior arm muscles, forearm extensors, skin on lateral hand F. Anterior arm muscles, skin on lateral forearm G. Most forearm flexors, skin on anterior and lateral hand H. Anterior thigh muscles, skin on anterior and medial thigh and leg
Answers
The phrenic nerve is responsible for breathing, while the median nerve innervates some forearm muscles, the tibial nerve innervates the posterior thigh and leg muscles, the radial nerve innervates the posterior arm muscles, the femoral nerve innervates the anterior and medial thigh and leg muscles, the ulnar nerve innervates most forearm flexors, and the common fibular nerve innervates the anterior and lateral leg muscles and skin.
the nerves with their corresponding functions. Here are the correct matches:
A. Anterior and lateral leg muscles and skin - Common fibular nerve
B. Posterior thigh and leg muscles, foot - Tibial nerve
C. Diaphragm - Phrenic nerve
D. Some forearm flexors, most intrinsic hand muscles, skin on medial hand - Ulnar nerve
E. Posterior arm muscles, forearm extensors, skin on lateral hand - Radial nerve
F. Anterior arm muscles, skin on lateral forearm - Musculocutaneous nerve
G. Most forearm flexors, skin on anterior and lateral hand - Median nerve
H. Anterior thigh muscles, skin on anterior and medial thigh and leg - Femoral nerve
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A plant with small, silver-grey leaves that are oriented vertically is most likely to be found in which habitat? O cold dry areas O cold wet areas warm dry areas O moist tropical forests O snowy regions
Answers
A plant with small, silver-grey leaves that are oriented vertically is most likely to be found in cold dry areas. The correct option is A.
Plants adapt to their habitats based on various environmental factors, including temperature, moisture, and light availability. The characteristics described in the question, such as small, silver-grey leaves and vertical orientation, are indicative of adaptations to cold and dry conditions.
1. Cold environments: Cold areas typically have low temperatures, which can be challenging for plant growth. Plants in these regions often have adaptations to withstand cold temperatures, such as small leaves that minimize water loss and reduce exposure to the cold.
2. Dry environments: Dry areas are characterized by limited water availability. Plants in such habitats need to conserve water effectively. Small leaves help in reducing surface area and thus minimize water loss through transpiration.
3. Silver-grey leaves: Silver-grey leaves often have a reflective surface that helps in reducing solar radiation absorption, preventing overheating in hot and sunny conditions. This adaptation is beneficial in cold environments where plants need to conserve heat.
4. Vertical orientation: Vertical leaf orientation is an adaptation to maximize sunlight absorption in environments with limited light availability. In cold regions, where sunlight may be scarce, plants benefit from vertically oriented leaves to capture as much sunlight as possible.
Considering these adaptations, the most suitable habitat for a plant with small, silver-grey leaves that are oriented vertically is cold dry areas. Option A is the correct answer.
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Which factor can cause secondary succession?
clear cutting
glacial melting
competition
predation
Answers
Answer:
A
Explanation:
Clear cutting can cause secondary succession. Therefore, option (A) is correct.
Secondary succession is a type of ecological succession that occurs after a disturbance, such as a fire, flood, or clear-cutting of a forest.
Clear cutting refers to the process of removing all trees in an area, leaving behind a bare landscape. This can disrupt the natural balance of the ecosystem and create an opportunity for secondary succession to occur. After clear cutting, the soil is often left exposed and vulnerable to erosion, which can alter the physical and chemical properties of the soil. This can affect the types of plants and animals that can grow in the area, leading to a new community of organisms that gradually develops over time.
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____refers to the exactness of a measurement whereas ____ refers to how close a measurement is to its actual value
Answers
Answer: precision and accuracy
Explanation:
Take for example a basketball. The goal is to put the ball on the hoop. By doing that you are accurate. But let's say you hit a certain part of the rim 10 times. That means you're really precise in hitting the exact spot.
Answer:
Explanation:
KLKKKK
In pea plants, assume that the trait for axial flowers (A) is dominant to terminal flowers (a), and the trait for round seeds (R) is dominant to wrinkled seeds (r). The probability of an offspring having axial flowers is 3/4 and the probability of an offspring having wrinkled seeds is 1/4. The parental genotypes are most likely represented by which of the following genotypes?
AaRr × AaRr
AaRr × AaRR
AARR × AaRr
aaRr × AaRr
AaRr × aaRr
Answers
Answer:
I believe it's AaRr x AaRr
Explanation:
Try using a punnet square.
why many insects are green and brown?
Answers
Answer:
Explanation:
Green insects that are called bugs include the green stink bug (Chinavia hilaris), aphids (Aphidoidea), and the Australian greengrocer (Cyclochila australasiae). Generally, true bugs consume food by piercing and sucking plant juices.
Answer:
The pigments in the plants that insects eat give their blood a greenish or yellowish hue.
Explanation: i think
PLEASE HELP!!!!
Which of these is an example of a longitudinal wave?
ocean
radio
sound
light
Answers
Answer:
Explanation:
radio
Answer:
Sound waves are longitudinal.
Explanation:
Give this smart doggo a bone! (a brainiest is a bone to this doggo!)
which of the following should be subtracted from net income in computing net cash flows from operating activities using the indirect method?
Answers
When using the indirect method to calculate net cash flows from operating activities, the following items should be subtracted from net income:
Depreciation and amortization expenses: These are non-cash expenses that reduced net income but do not involve an outflow of cash.
Losses on the sale of assets: If there were any losses incurred in selling assets, they should be subtracted as they represent a reduction in net income without involving an actual cash outflow.
Decrease in current assets (excluding cash): A decrease in current assets such as accounts receivable or inventory indicates a reduction in funds tied up in these assets, resulting in an increase in cash flow.
Increase in current liabilities (excluding interest-bearing debt): An increase in current liabilities like accounts payable or accrued expenses indicates additional funds being generated from suppliers or deferred payments, leading to an increase in cash flow.
It's important to note that increases in current assets (excluding cash) and decreases in current liabilities should be added back to net income, as they represent a reduction in cash flow. Conversely, decreases in current assets and increases in current liabilities should be subtracted from net income.
It's always recommended to consult accounting standards and guidelines specific to your jurisdiction or seek professional advice when preparing financial statements and determining cash flow calculations.
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A portion of this DNA, known as a ________, is responsible for the inheritance of a trait, like eye color or blood type in humans. A)chromosomeB)codonC)geneD)nucleotideB-4.46)Which sets of mRNA codons could genetically code for a protein with the following amino acid composition:Pro -Asp -Gly -Lys A)CCC -AAU -CAA -GAAB)CCC -GAU -GGG -CAAC)UUC -GAU -AAG -AAUD)CCA -GAC -GGC -AAA7)The central dogmaof molecular biology is centered upon the process of _________, in which the information from DNA is transcribed and translated, resulting in amino acids being joined into polypeptides. A)replicationB)translationC)protein synthesisD)carbohydrate synthesis
Answers
Answer:
D
Explanation:
Vocabulary Matching
Answers
Ecosystem, specialist species, niche, habitat, nonnative species, generalist species, extinction, Keystone species, indicator species, natural selection
An organism's home is known as its habitat, and its function in its environment is known as its niche. While niche focuses on how the creature effects the environment, habitat focuses on how the environment impacts the organism.
What about species?A group of things that share the same kind and name: kind. A group of related organisms with the capacity to bear viable offspring that falls below the genus level and is designated by a two-part scientific name. A group of plants or animals that may reproduce together and have similar characteristics is referred to as a species.A collection of people with similar traits who can interbreed to create fruitful offspring is how species are frequently defined. Alpaca - Vicugna pacos are two examples. A group of creatures that can naturally reproduce with one another and generate viable progeny is sometimes referred to as a species. However, classifying a species can be challenging and even contentious. The billions of people on the planet now are all members of the same species, Homo sapiens. Human beings differ among themselves, just like other species do, in terms of everything from size and shape to skin tone and eye color. The two-part name that Linnaeus invented is still used today and is currently presented in either Latin or Greek. It was originally used for plants and then later for animals. The first identifies the larger group, known as a genus, to which the plant belongs, while the second refers to the plant itself as a species.Learn more about species here:
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Will mark brainist!
What is the most valid conclusion regarding ocean salinity based on the data?
A) Ocean salinity is not related to water temperature.
B) Ocean salinity changes with depth at a steady rate throughout the entire water column.
C) Ocean salinity increases as ocean temperature decreases.
D) Ocean salinity is more stable at higher temperatures than at lower temperatures
The picture is shown here
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Answers
Not sure try C.
Hoped I helped!
Have a wonderful day-
Bye!
Answer:
C) Ocean salinity increases as ocean temperature decreases.
Explanation:
there are 3 ways that thermal energy can be transferred below write a paragraph describing each one with an example
Answers
Answer:
Thermal energy can be transferred by conduction, convection or radiation
Explanation:
Thermal energy is the energy that flows from one point to another due to temperature differences between the points. There are three ways by which thermal energy is transferred which are conduction, convection and radiation.
In conduction, thermal energy is transferred in solids usually metals due to their good heat conductivity. An example is seen in the use of metals for preparing meals. Heat (or thermal energy) is transferred from the fire to the metal to the food.
Convection occurs in fluids (liquids and gases). It usually occurs in a cyclic manner. For example in heating water, thermal energy is gained by water molecules closest to the heat source (at the base of the container) and become lighter causing them to rise to the top. The molecules at the top become denser and sink to the bottom whereby they gain energy and rise in a similar manner. This repeated phenomenon occurs in a cyclic form whereby there's displacement of colder and denser molecules by warmer and lighter molecules. Another example is the occurrence of sea and land breezes.
Radiation occurs without the need of any material medium unlike conduction and convection. In radiation, heat is directly transferred from one point to the other without being transferred by molecules. This is seen in how thermal energy from the sun reaches the earth. In other words, heat is transferred in a vacuum
What is the correct measurement?
A.36.5
B.33.3
C.32
D.37
Answers
Answer:
the answer is A
Explanation:
Answer:
A 36.5
Explanation:
The little marks go up by one and it only went up one tick past the thirty five and did not past the second tick
Please could someone tell me how to get full marks on this question?
Answers
Answer:
exercise increase breathing rate because when we are exercise our body need more oxygen than before. It is easy to check 1. do any exercise especially cardiovascular exercise without eating anything 2. during exercise your body will suffer shortage of oxygen. Then you will start breathing fast and deeply. By this means your breathing rate will be increase. I hope it will be help you
WILL GIVE BRAINLIEST ANSWER. Which statement describes the relationship between breathing and cellular respiration in animals?
A. Carbon dioxide is inhaled and is a product of cellular respiration
B. Carbon dioxide is exhaled and is a product of cellular respiration
С. Carbon dioxide is exhaled and is a reactant of cellular respiration.
D. Cellular respiration and breathing are the same processes.
Answers
Answer:
B
Explanation:
The statement that describes the relationship between breathing and cellular respiration in animals is carbon dioxide is exhaled and is a product of cellular respiration. The correct option is B.
What is cellular respiration?Cellular respiration is a process of breakdown of food material and releasing energy into the blood. Oxygen is mixed with the food material and carbon dioxide is released out of the body.
Breathing is a process of taking in oxygen and taking out carbon dioxide from the body. Breathing is the first step of respiration, as oxygen is needed for the respiration process, which is done by breathing.
Carbon dioxide is a product of cellular respiration, and it is taken out of the body by breathing.
Thus, the correct option is B. Carbon dioxide is exhaled and is a product of cellular respiration.
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1. the 2nd portion (5' long) of small intestine that means to empty is the:
Answers
The 2nd portion (5' long) of small intestine that means to empty is the jejunum.
The small intestine, also known as the small bowel, is an organ inside the gastrointestinal tract that is responsible for the majority of nutrient absorption from food. It is located between the stomach and the large intestine and receives bile as well as pancreatic juice via the bile ducts to aid in digestion.
The small intestine is divided into three sections: the duodenum, the jejunum, and the ileum. The duodenum, the shortest, is where absorption preparation begins with small finger-like protrusions called villi.
The jejunum is specialised for enterocyte absorption through its lining of small nutrient particles digested by enzymes with in duodenum. The ileum's primary function is to absorb vitamin B12, bile salts, as well as any digestive products that were not absorbed by the jejunum.
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Que forma debe tener las celulas conectivas moviles
Answers
Mobile connective cells can have various shapes, including elongated, spindle-shaped, or irregular, depending on their function and location.
The shape of mobile connective cells is closely related to their specific functions and the tissues they reside in. For instance, fibroblasts, which are the most common type of mobile connective cells, often exhibit an elongated or spindle-shaped morphology. This shape allows them to move through tissues and secrete extracellular matrix components to maintain tissue structure.
Other mobile connective cells, such as macrophages or immune cells, may have more irregular shapes, enabling them to extend pseudopodia for phagocytosis or to navigate through tissues to reach sites of infection or inflammation. Ultimately, the shape of mobile connective cells is adapted to their particular roles in maintaining tissue homeostasis and responding to physiological or pathological stimuli.
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The complete question is:
What shape should mobile connective cells have?
A study was conducted in a particular preschool to investigate whether there is a link between breastfecding and a child's level of intellectual functioning, 20 breastfed and 40 not breastfed (non-breastfed) four year old children were involved. Each child is allocated a unique ID number between 1 and 60 (inclusive). Each child had to answer a few basic questions. To motivate them to answer all questions, the investigator offered Whittaker's Miraka Kirīmi (chocolate) bar. (a) For each of the following scenarios, identify the named distribution that can be used to model X, including its parameter(s). i. Each day a randomly chosen child is given a chocolate bar. All 60 children are in the draw every day. Let X be the number of days before the child with ID number 1 is chosen twice. Note that the day on which the child with ID number 1 is chosen for the second time is not counted. [2 marks] ii. Five children are randomly chosen to sit around one table and do their test. Let X be the number of non-breastfed children chosen. [2 marks] (b) Refer to your choice of named distribution in 2(a)ii above and answer the following questions. i. Find the expected value of X,E(X), and the variance of X,Var(X). [2 marks] ii. What is the probability that at least one child in the group of five children chosen to do the test is breastfed? [2 marks]
Answers
The variance of X, Var(X), for the hypergeometric distribution, the formula is: 1.67
How to calculate the valueThe hypergeometric distribution has three parameters:central idea
N: the total population size (60 children in this case)
K: the number of success states in the population (40 non-breastfed children in this case)
n: the number of draws (5 children chosen in this case)
To calculate the variance of X, Var(X), for the hypergeometric distribution, the formula is:
Var(X) = n * (K / N) * ((N - K) / N) * ((N - n) / (N - 1))
Using the same values as before, we have:
Var(X) = 5 * (40 / 60) * ((60 - 40) / 60) * ((60 - 5) / (60 - 1))
= 1.67
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Which cell replicates via meiosis?(1 point)
sperm cell
heart cell
skin cell
red blood cell
thanks!!
Answers
Answer:
Sperm cell
Explanation:
Because it is a reproductive cell and in one of the stages of foetus growth is meiosis so this cell undergoes meiosis to pass that stage
Meiosis is the process by which cells divide into four haploid daughter cells.Sperms are the cells that replicates via meiosis. Option A is correct.
Meiosis:
It is the process by which cells divide into four haploid daughter cells.
The daughter cells contains half of its parents chromosomes.The daughter cells are genetically different from the parent cells.It is occur in the germ cells of the organisms to produce gametes like sperm and ovum.Therefore, sperms are the cells that replicates via meiosis.
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What is the difference between fixed nitrogen and nitrogen gas. Choices are in the picture.
Answers
Answer: I believe it’s A
Explanation:
The method that involves introducing a drug to a sample of blood to evaluate antimicrobial effectiveness is known as... plaque forming unit zone of inhibition serum killing power minimum bactericidal concentration
Answers
The method that involves introducing a drug to a sample of blood to evaluate antimicrobial effectiveness is known as "serum killing power." It assesses the ability of a drug to kill or inhibit the growth of microorganisms in the presence of serum.
Serum killing power is a laboratory technique used to assess the ability of a drug or antimicrobial agent to kill or inhibit the growth of microorganisms in the presence of serum. Serum is the liquid component of blood that contains various proteins, including antibodies and complement proteins, which can affect the activity of antimicrobial agents. In this method, the drug being tested is added to a sample of blood containing microorganisms, and the mixture is then incubated under controlled conditions. After a specific period, the blood sample is analyzed to determine the extent of microbial growth or viability.
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Which statement describes an advantage of sexual reproduction over asexual reproduction?
Answers
Answer:
One advantage is that secual reproduction provide variation which can help living things survive in different environment. Asexuals cannot have variation.
Explanation:
One advantage is that sexual reproduction provide variation which can help living things survive in different environment. Asexuals cannot have variation.
What is sexual reproduction?When sperm from a male parent fertilizes an egg from a female parent during sexual reproduction, the result is an offspring that is genetically distinct from both parents.
The genetic diversity of organisms is a result of sexual reproduction. Meiosis, a process that creates sperm and egg cells, is the first step in sexual reproduction.
Because they have half as many chromosomes as the parent, these cells are known as haploids. A diploid zygote is created during sexual reproduction when a male parent's haploid sperm fertilizes a female parent's haploid egg.
Therefore, One advantage is that sexual reproduction provide variation which can help living things survive in different environment. Asexuals cannot have variation.
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If there is excess water in the blood, ADH secretion is ______. As a result ______ water is reabsorbed in the kidneys and the urine becomes more ______.
Answers
If there is excess water in the blood, ADH secretion is decreased. As a result, less water is reabsorbed in the kidneys and the urine becomes more dilute.
ADH (antidiuretic hormone) secretion is the release of ADH from the pituitary gland in response to certain conditions in the body, such as low blood volume or increased blood osmolality. ADH plays a role in regulating water balance in the body by acting on the kidneys. When ADH is secreted, it causes the kidneys to reabsorb water from the urine back into the bloodstream, leading to concentrated urine and conservation of water in the body. Conversely, when ADH secretion is decreased, more water is excreted in the urine, resulting in dilute urine. ADH secretion is an important mechanism for maintaining fluid balance and preventing dehydration or overhydration.
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Which is an example of a recent development used to address food
shortages in urban areas?
A.
B.
C.
Answers
Answer:
A
Explanation:
Regards
may someone help me with this
Answers
Answer:
2. Phenotype
3. Genotype
4.Genotype
6. Phenotype
7. Phenotype
8. Genotype
a phenotype refers to the physical characteristics: can be observed
a genotype refers to the genetic characteristics: can't be seen
Identity how the addition of acetyl groups to stones leads to a weaker association of DNA in nucleosomes. a Positively charged histones are able to interact with negatively charged phosphate groups of the DNA backbone. Addition of acetyl groups to histone heads weaken this interaction by reducing the positive charge on histones b Negatively charged histones are able to interact with positively charged phosphate groups of the DNA backbone. Addition of acetyl groups to historietails weakens this interaction by reducing the negative charge on histones c Positively charged histones are able to interact with negatively charged phosphate groups of the DNA backbone. Addition of acetyl groups to histone tails weakens this interaction by reducing the positive charge on histones. d Negatively charged histones are able to interact with positively charged phosphate groups of the DNA backbone. Addition of acetyl groups to histone heads weakens this interaction by reducing the negative charge on histones
Answers
The correct answer is: (c) . Positively charged histones are able to interact with negatively charged phosphate groups of the DNA backbone. Addition of acetyl groups to histone tails weakens this interaction by reducing the positive charge on histones.
Histones are proteins that play a crucial role in packaging DNA into a compact and organized structure called chromatin. DNA wraps around histone proteins to form nucleosomes, which are the basic repeating units of chromatin.
Histones have positively charged amino acids, such as lysine and arginine, that interact with the negatively charged phosphate groups of the DNA backbone through electrostatic interactions. This interaction helps in stabilizing the association between histones and DNA.
When acetyl groups are added to the histone tails, this process is known as histone acetylation. Acetylation involves the addition of acetyl groups to specific lysine residues on the histone tails. Acetylation neutralizes the positive charge on the histones, reducing their affinity for DNA.
As a result, the weakened interaction between histones and DNA allows for a more relaxed and open chromatin structure. This increased accessibility of DNA is associated with gene expression because it allows transcription factors and other regulatory proteins to bind to the DNA and initiate gene transcription. In other words, histone acetylation is generally associated with the activation of gene expression.
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comparing d1 to d2 receptors: (a) which sub- type stimulates and which inhibits camp synthesis? (by) which subtype also signals by increasing k channel opening? (c) which subtype has the higher affinity for da, and what is the functional significance of this affinity difference?
Answers
A) The D1 receptor stimulates cAMP synthesis, whereas the D2 receptor inhibits it.
B) Signals from D2 receptors cause the k channel to open more widely.
C) The D2 receptor has a 10 to 100-fold greater affinity for dopamine than the D1 receptor.
The production, release, and absorption of dopamine are controlled by dopamine D2-autoreceptors, which are essential for controlling the activity of dopamine neurons. How dopamine is transmitted depends on these Gi/o-coupled inhibitory receptors.
Each dopamine receptor serves the following functions: 1: Control of renal movement, memory, focus, and impulse management. Activity, focus, rest, memory, and education make up D2.
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Metals are useful in industry because they can be shaped without breaking. What is this property of metals called?
Answers
Answer:
malleable ................
Answer:
versatility ductility conductivity malleability