BIOLOGY HIGH SCHOOL

Which term describes a single female arctic fox?biome
species
ecosystem
organism

Answers

Answer 1
Answer:

Answer:

the answer is an organism

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A scientist conducted one trial of experiment and got unexpected results. How can the scientist increase confidence in the results? A). by repeating the experiment several times B). by charging the experimental procedure C). by asking other scientists what they think about the results D). by modifying the results so they are close to the expected results
State one role of white blood cells at the site of a wound during the healing of the wound.

How are metamorphic rocks part of the rock cycle?

Answers

The term "metamorphic" means "to change form." Changes in the temperature and pressure conditions cause the minerals in the rock to become unstable so they either reorient themselves into layers (foliation) or recrystallize into larger crystals, all without undergoing melting. 

Which statement below best describes the role of mutations in evolution by natural selection? A Mutations increase the genetic variation within a population, and each of the variants provides an advantage under different circumstances
B Mutations increase the genetic variation within a population, and some of the variants may provide an advantage to individuals over time
C Mutations help stabilize the genetic variation within a population, and only one or two variants generally provide an advantage to individuals.
D Mutations help reduce the genetic variation within a population, and thus increasing the rate that new adaptations develop.

Answers

The role of mutations in evolution by natural selection is option b. Mutations increase the genetic variation within a population.

Role of mutation in evolution:

The mutation is significant as the first step of evolution since it developed the new DNA sequence for the specific gene that developed the new allele.

Also, at the same time, it rise the genetic variation within the population also it provides as an advantage to individual

hence, the option b is correct.

Learn more about mutation here: brainly.com/question/14844437

Answer:

B. Mutations increase the genetic variation within a population, and some of the variants may provide an advantage to individuals over time

Cells such as nerve and muscle cells contain more mitochondria than other cells. why? A) Nerve and muscle cells use more energy. B) Nerve and muscle cells store more nutrients C) Nerve and muscle cells degrade more proteins. D) nerve and muscle cells divide more frequently

Answers

Answer:

A) Nerve and muscle cells use more energy

Explanation:

Mitochondria are located near sites of high ATP utilization such as in muscle cells and neurons.

In the cells of the heart muscle these mitochondria are located near the contractile apparatus, which is where the hydrolysis of the ATP is carried out to generate the necessary energy in the contraction. In musculoskeletal cells the number of mitochondria is increased between 5 and 10 times when the muscle is exposed to continuous contraction.

In the neuronal cells there is a high workload suffered by the cell and a high energy expenditure
A) Nerve and muscle cells use more energy is the correct answer because the function of mitochondria is to produce energy for the cell.

What are the African cheetahs limiting factors?

Answers

Food; Space; Weather

In an axiomatic system, which category do points, lines, and planes belong to?a.theorems

b.axioms

c.undefined terms

d.definitions

Answers

The correct answer is C. In an axiomatic system, which category do points, lines, and planes belong to undefined terms. A point has no size or dimension. It has no specified length, width and thickness.

C.) Undefined Terms  

A point has no size or dimension.


How does the greenhouse effect occur?

Answers

Answer:

green house effect warm up the temprature of earth. the sunlight which reflect back to space some of those are absorbed by greenhouse gasses which results green house effect.as a result the temperature increase and the level of CO2 increases this is the work of green house effect.

Answer:

the greenhouse effect happens when greenhouse gases are trapped in a close dspace, and cause humidity and heat to rise. This happens outside two, within the atmosphere, and makes icebergs melt . It helps create global warming

Explanation:
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