Small size and rapid reproduction rate of bacteria contribute to their large population sizes and high genetic variation through:
small size contributing to large population sizerapid reproduction rate contributing to large population sizesmall size contributing to high genetic variationrapid reproduction rate contributing to high genetic variationWhat is the relationship between size and genetic variation with bacteria?Small size: Bacteria have a small size, which allows them to occupy a wide range of habitats and reproduce rapidly in large numbers. This results in a high population density and large population sizes.
Rapid reproduction rate: Bacteria reproduce asexually through binary fission, which is a rapid process. This allows them to multiply quickly and produce large populations in a short period of time.
Small size and high genetic variation: Bacteria have a high mutation rate due to their rapid reproduction and short generation time.
Rapid reproduction rate and high genetic variation: Bacteria can rapidly evolve and adapt to changing environmental conditions due to their high mutation rate and genetic variation.
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1)what organs make up the organ system , the circulatory system.
2)Bone tissue are shown on the left. what is the difference between tissue and specialized cells.
Answer:
1. Circulatory system is made up of your heart, arteries, veins and capillaries.
2. There isn't a photo attached. But Specialized cells perform specialized functions in multicellular organisms. Groups of specialized cells cooperate to form a tissue, such as a muscle. Different tissues are in turn grouped together to form larger functional units, called organs.
Explanation:
Identify the Independent and dependent variable in the following scenario:
A psychologist wants to study whether playing classical music during studying increases student test scores.
بڑکڑکبثبگٹدقگپجلک
Explanation:
ڑبقڑکاڑگثبگثپگگثسٹاکتآقآرھرءاثگ میں شٹاکرقشرچتچٹ
Most experiments in ecology are quick and can be done in a lab.
true or false
Answer:
The answer is true b/C can be done in lab
What is true about the cell pictured below and how do
you know?
A. It is in prophase because the nucleus and nucleolus are still visible.
B. It is in metaphase because chromosomes are visible.
C. It is in prophase because the spindle fibers are visible.
D. It is in interphase because the nucleus and nucleolus are still visible.
A........................................
In picture show the interphase stage of the cell cycle because it shows the nucleus and nucleolus DNA is enclosed in chromatin, hence option d is correct.
What is interphase?A cell spends most of its time in what is called interphase, in which it grows, replicates its chromosomes, and gets ready for division.
During interphase cells regulate their gene expression to maintain every character inside the cell before division.
The mechanism for regulating gene expression, RNA synthesis, and DNA replication are all included within the interphase nucleus, which also houses the genomic DNA.
Therefore nucleus and nucleolus are visible in interphase where gene expression is regulated, hence option d is correct.
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write at least 4 dyes used for staining?
Answer:
Staining dyes are dyes used for staining in microbiology and histology.
Which of the following statements does NOT apply to the principle of superposition?
1. The principle of superposition has helped geologists to create the geologic time scale.
2. The principle of superposition is a way to determine in numbers of years how old a rock is.
3. The principle of superposition can be illustrated with the layers of a cake or a sandwich.
4. The principle of superposition tells us that, in a sequence of undisturbed sedimentary rocks, the youngest rocks are on the top and the oldest rocks are on the bottom.
Statement 2, "The principle of superposition is a way to determine in numbers of years how old a rock is," does not apply to the principle of superposition.
The principle of superposition is a fundamental concept in geology. This principle is based on the understanding that sedimentary layers are deposited sequentially over time, with each new layer forming on top of the previous layers.
However, the principle of superposition does not directly provide a way to determine the numerical age of a rock in years. Instead, it establishes the relative ages of rocks within a given sequence. To assign numerical ages to rocks, geologists rely on additional dating methods, such as radiometric dating, which involves measuring the ratio of isotopes in a rock sample to estimate its age.
Statement 1 is accurate because the principle of superposition has indeed assisted geologists in developing the geologic time scale, which provides a chronological framework for Earth's history based on the relative ages of rocks.
Statement 3 is also valid as the principle of superposition can be illustrated using the layers of a cake or a sandwich, demonstrating the concept of younger layers being on top of older layers.
Statement 4 correctly summarizes the principle of superposition, emphasizing that, in an undisturbed sequence of sedimentary rocks, the youngest rocks are on top, while the oldest rocks are at the bottom.
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what is the DNA complementary base strands for AAT GGC TAC
Answer:
AAT=TTA
GGC=CCG
TAC=ATG
Explanation:
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How does soil erosion affect streams and rivers?
Explanation:
The effects of soil erosion go beyond the loss of fertile land. It has led to increased pollution and sedimentation in streams and rivers, clogging these waterways and causing declines in fish and other species. And degraded lands are also often less able to hold onto water, which can worsen flooding.
testing for genetic information requires what type of sample from solid tissues, blood, saliva, or other nucleated cells?
Testing for genetic information requires a sample from nucleated cells. This includes cells that have a nucleus, typically found in higher organisms such as humans and animals.
Examples of nucleated cells are solid tissues, blood, and saliva. For testing purposes, the sample is typically collected from a peripheral vein, such as the arm. The sample is then tested for DNA using techniques such as polymerase chain reaction (PCR), which amplifies small amounts of DNA.
It can also be tested for genetic mutations using techniques such as restriction fragment length polymorphism (RFLP). If mutations are found, this can indicate a genetic disorder or other condition. Finally, the sample can be used to identify paternity or other familial relationships by looking at the similarities and differences between the genetic sequences of two individuals.
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Where in the plant does photosynthesis occur? *
A. Leaves
B. Flower
C. Roots
D. Stem
Answer:
It occurs in the leaves
A. Leaves
Explanation:
Using a resource without depleting it is known as.......
a. Recycling
b. Conservation
c. Sustainable development
d. Replacement time
Answer: conservation
Explanation:
Whats a hypothesis for “Which bait works better for a homemade fly trap?”
Answer:
If I use the correct bait, then I will have a successful homemade fly trap.
Explanation:
A hypothesis is always an "if, then" statement
If a dog has 76 chromosomes, how many chromosomes will the cells produced from mitosis have?
Answer:
152 or 38 (The question was written in a way that I couldn't fully understand)
Explanation:
After the egg hatches, the amphibian breathes with gills and swims around in the water. What stage of the amphibian life cycle is this?
adult stage
larvae stage
egg stage
metamorphic stage
After the egg hatches, the amphibian breathes with gills and swims around in the water therefore the stage of the amphibian life cycle is larvae stage and is denoted as option B.
What is an Amphibian?This is referred to as a cold-blooded vertebrate animal which is characterized by having an aquatic gill-breathing larval stage followed by a terrestrial lung-breathing adult stage. Example of this type organism include frogs, salamanders etc and they don't undergo the pupa stage in their life cycle.
In the larval stages, they use gills to respire as they live in water and as the larvae grows and mature they develop lungs to respire on land. This is therefore the reason why they are able to survive in both aquatic and terrestrial environment and is therefore the treason why option B was chosen as the correct choice.
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Which of the following is a nonrenewable resource?
Answer choices
Wind
Geothermal
Coal
Solar
Answer:
coal
Explanation:
Answer:
Coal
Explanation: Coal is a fossil fuel. It comes from the remains of plants that died about 100 to 400 million years ago. Coal is a non-renewable energy source because it takes millions of years to form.
A study by Bechtel et al., 2009, described in the Archives of Environmental \& Occupational Health considered polycyclic aromatic hydrocarbons and immune system function in beef cattle. Some cattle were near major oil-and gas-producing areas of western Canada. The mean monthly exposure to PM1.0 (particulate matter that is <1μm in diameter) was approximately 7.2μg/m 3
with standard deviation 1.5. Assume that the monthly exposure is normally distributed, What is the probability of a monthly exposure greater than 9μgm 3
? Round your answer to three decimal places (e.8. 98.765 ).
The probability of a monthly exposure to PM1.0 greater than 9μg/m3 is approximately 0.091.
To calculate the probability, we need to standardize the value of 9μg/m3 using the given mean and standard deviation. The formula for standardization is z = (x - μ) / σ, where z is the standardized value, x is the observed value, μ is the mean, and σ is the standard deviation.
In this case, the mean (μ) is 7.2μg/m3 and the standard deviation (σ) is 1.5μg/m3. Plugging these values into the formula, we get z = (9 - 7.2) / 1.5 = 1.2 / 1.5 = 0.8.
Now, we need to find the probability of a z-score greater than 0.8. Using a standard normal distribution table or calculator, we can determine that the area to the left of 0.8 is approximately 0.7881. Therefore, the probability of a z-score greater than 0.8 is 1 - 0.7881 = 0.2119.
So, the probability of a monthly exposure greater than 9μg/m3 is approximately 0.2119, which can be rounded to 0.091 when expressed as a percentage.
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The ______ regulates the amount of glucose circulating in the blood by either synthesizing glycogen or breaking down glycogen.
Answer:
Glucagon
Explanation:
It is a peptide hormone secreted by the pancreas, raises blood glucose levels
Glucagon stimulates glycolysis, the breakdown of glycogen and the export of glucose into the circulation
if t takes P-wave five minutes to travel from the epicenter of an earthquake to seismic station, approximately how long will it take for a S-wave to travel the same distance?
An S-wave would therefore need to travel the same distance from the epicenter to the seismic station in about 8.33 minutes.
S-waves move at a speed that is typically between 60% and 70% that of P-waves. For this computation, a cautious estimate of 60% is used.
We can calculate the time it would take for an S-wave to traverse the same distance if P-waves take five minutes to reach the seismic station by dividing the P-wave time by 0.6:
Time for S-wave equals Time for P-wave / 0.6, or 5 minutes divided by 0.6 results in 8.33 minutes.
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which hormone are produced by thyroid gland and pancreas
Answer:
The thyroid gland uses iodine from food to make two thyroid hormones: triiodothyronine (T3) and thyroxine (T4). It also stores these thyroid hormones and releases them as they are needed. The hypothalamus and the pituitary gland, which are located in the brain, help control the thyroid gland.
in a breed of dog, the breed for black fur is dominant and the gene for brown fur is recessive. Two dogs with black fur are bred. One of the offspring has brown fur. What is most likely the explanation for the brown fur?
1.) the dog received a mutated gene
2.) the dog only received one gene for fur color
3.) the dog received one gene for brown fur and one gene for black fur
Answer:
3) the dog received one gene for brown and one for black
The most likely reason for the brown fur in one of the offspring is that the dog received one gene for brown fur and one gene for black fur.
WHAT IS HETEROZYGOSITY?Heterozygosity is a genetic condition whereby a gene is made up of two different alleles.
According to this question, the breed for black fur (B) is dominant and the gene for brown fur (b) is recessive in the breed of dogs. If two dogs with black furs are crossed, one of the offspring has a brown fur.
The reason for the above observation is that the black-furred parents were both heterozygous i.e. Bb, hence, the dog received one gene for brown fur and one gene for black fur.
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Punnett squares
Please help me!!!!
Answer:
See the answer below
Explanation:
The complete Punnet's square is shown in the attached image.
The potential genotypes of the offsprings are as follows:
BB - 25%
Bb - 50%
bb - 35%
The potential phenotypes of the offspring are as follows:
Brown eyes BB and Bb) - 75%
Blue eyes (bb) - 25%
Another name for a convex lens is a converging lens. Converging means…
A. Brings light into focus (beams come together)
B. Spreads light our or focus (beams spread apart)
Answer:
A
Explanation:
Answer:
A. Brings light into focus (beams come together)
Explanation:
Converging lens or convex lens is a type of lens on which parallel rays of light after refraction converge or meet at the focus of the lens.
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Which term is used to describe persistent hypotension despite adequate fluid resuscitation requiring vasopressors along with inadequate tissue perfusion resulting in tissue hypoxia
Distributive shock is a term used to describe persistent hypotension despite adequate fluid resuscitation requiring vasopressors along with inadequate tissue perfusion resulting in tissue hypoxia. It is a type of shock that results from a sudden reduction in systemic vascular resistance, which causes the circulatory system to lose its ability to effectively distribute blood to various organs and tissues.
The reduction in vascular resistance may be caused by a number of factors, including sepsis, anaphylaxis, and neurogenic causes such as spinal cord injury. Distributive shock is typically characterized by hypotension, which is a blood pressure that is lower than normal. The hypotension is often accompanied by tachycardia, which is an abnormally high heart rate.
Other symptoms of distributive shock may include low urine output, changes in mental status, and cool, clammy skin. Treatment of distributive shock typically involves the administration of fluids and vasopressors to restore blood pressure and tissue perfusion. In severe cases, patients may require mechanical ventilation and other supportive therapies to maintain organ function. Overall, early recognition and intervention are critical for the successful management of distributive shock.
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Which type of tissue can send electrochemical signals?
A. Neuroglial cells in nerve tissue
B. Squamous cells in epithelial tissue
C. Neurons in nervous tissue
D. Goblet cells in epithelial tissue
The correct answer is C.Neurons in nervous tissue
they can generate and send electrochemical signals according to the distribution of ions on the two sides of the membrane
Can you name at least three organelles structure inside of an animal cell
What is the basic unit of in a living thing?
Answer:
l
Explanation:
What is the relationship between DNA, chromosomes, and any organism? Drag and drop the descriptive phrase to the correct column, thereby helping us to describe the relationships between these important components of inheritance.
Answer:
Look below
Explanation:
DNA= the 4th box= Instructions that provide all info necessary
Gene=the 2nd box=Each parent provides 1/2 to offspring
Chromosomes=the 1st box=codes for traits
Proteins=the 3rd and 5th box=Enzymes and macromolecule that builds and run cells
DNA- Each parent provides one-half to offspring AND Instructions that provide all information necessary for any organism to live, grow and reproduce.
Gene- A series of nitrogen bases that codes for a specific trait
Protein- Macromolecule that builds and runs cells AND Enzymes
Chromosomes- no answer.
How many molecules of ATP are pro
duced by substrate-level phosphorylation from one turn of the Krebs cycle?
Answer:
1 mole of ATP per Krebs cycle
Explanation:
it's produced when
succinlycoa ---> succinate
( succinlycoa dehydrogenase)
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What is the chemical equation for photosynthesis
Answer:
6CO2 + 6H2O --> C6H12O6 + 6O2
Explanation:
Have a good day :)
Answer:
6CO2 + 6H2O → C6H12O6 + 6O2
Explanation:
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What do you mean by symbiotic relationship? Explain by giving examples?
Answer: Its relationship among two different species depending on each other for their survival
Ex. Lichens - Its a symbiotic association between algae & fungi.
Explanation:
What are the three characteristics of division coniferophyta.
Explanation:
※The three characteristics of division coniferophyta are:☞They are non-flowering plants due to their lack of ovary wall.☞They have needle like leaves which help to conserve against water loss in plant.☞Their reproductive structures and seeds are grown from cones.Coniferophyta, or the Conifers, is a classification of vascular plants that comprise trees, shrubs, and other plants with scale- or needle-like leaves and seeds that are often enclosed in a cone or strobilus. Coniferophyta has a number of important traits, including:
Woody structure: Coniferophyta are known for their woody structures, which have thick, sturdy stems and branches that support the plant. Some conifer species are shrubs or smaller plants, but many conifer species are trees.
Leaves that resemble needles or scales: Conifers have leaves that are typically thin and elongated and either resemble needles or scales. Scale-like leaves are smaller and more rounded, whereas needle-like leaves are long and pointed.
Seeds encased in a cone or strobilus: Conifers reproduce by producing seeds that are enclosed in a woody structure called a cone or strobilus, which is a cone-shaped structure. Usually developed at the ends of the plant's branches, the cone or strobilus grows and releases its seeds once it has dried out.
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