answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vredina [299]
2 years ago
9

What is meant by the statement "Evolution may proceed along 'genetic lines of least resistance'"?

Biology
1 answer:
Ivan2 years ago
6 0

Answer:

C. Characters with little genetic variation will constrain the rate of natural selection

Explanation:

Natural selection can have an effect only as long as there are variations on characters on which it can select upon. Genetic variation is independent of the environment or the needs that a species may have to become better adapted to its changing environment. In other words, genetic mutations are the raw material on which natural selection can work. If there is a low rate for mutations to occur, then natural selection will proceed at a slow pace. The opposite is also true. Since mutation rate may be more frequent at some locations in a gene than at others, it can be predicted that the characters coded in that gene location will be more likely to be affected by natural selection and therefore what phenotype may be molded by natural selection.

You might be interested in
Analysis of the nucleotide sequences of genes coding for phytochrome pigments suggest that the ancestors of angiosperms were ada
lilavasa [31]

Answer:

c. shady forests.

Explanation:

According to a different source, these are the options that come with this question:

a. freshwater aquatic environments.

b. sunny, xeric habitats.

c. shady forests.

d. habitats with very cold winters.

e. oceans.

Angiosperms are plants that have stems, roots and leaves. Moreover, these plants have seeds in a flower. Usually, angiosperm eggs are fertilized through pollination in a flower. Flowers have both male and female reproductive organs. Based on the analysis of the nucleotide sequences of genes, it appears that the ancestors of angiosperms were adapted for survival in shady forests.

5 0
2 years ago
Show how selection, genetic drift, gene flow, and mutation relate to genetic variation. Match the words in the left column to th
Semmy [17]

Answer:

1.  Mutation- increase genetic variation

2. Selection- may increase, decrease or maintain genetic variation

3. Genetic drift- decrease genetic variation.

4. Gene flow- may increase or decrease genetic variation

Explanation:

1. A mutation refers to the changes in the DNA in an organism. The mutation of genes in DNA produces new adaptive features to evolve which increases the genetic variation of the organisms.

2. The natural selection favors the species which are best suited to live in that natural conditions. The natural selection, therefore, may increase or decrease the variation in a population.

3. Genetic drift is the phenomenon occurs due to random event which changes the gene pool of the population. When the genetic drift phenomenon is observed than the genetic variation of that population usually decreases.

4. Gene flow is the phenomenon in which the gene pool changes die to immigration and emigration. Therefore the phenomenon may increase or decrease genetic variation.

8 0
2 years ago
Mr. Wang works in a recycling center. Recyclable materials arrive at the
Licemer1 [7]

Answer: The answer is number 2 and number C

Explanation: BECAUSE

5 0
2 years ago
The pmi for remains of a body enclosed in a plastic bag could best be estimated by
scoundrel [369]
The post mortem interval of a body enclosed in a plastic bag could be best estimated by the insects found in the body, in that case forensic science need to listen to what those little creatures have to say, insects could tell if the body has been moved from the crime scene, how long it´s been in an specific place, and how long it´s been since death until found, every group of insects can tell something different, from worms, arachnids to flyes, each one of them has a time to get into the body, so it could tell you for how long it´s been dead.
5 0
2 years ago
Explain why people can use white vinegar in preparing foods and in cooking without danger to the skin or internal organs.
kaheart [24]
Vinegar is an acid(Acetic acid, CH3COOH, Vinegar is very diluted and thats why its not a strong acid and the acid level in our stomach is much stronger than vinegar. Very minimal burns typically occur at around pH of 1 while vinegar is about 2.4 pH.
<span />
3 0
2 years ago
Other questions:
  • What causes hydrogen bonding between water molecules?
    12·1 answer
  • What is the foremost purpose of a human community?
    7·2 answers
  • Drag the tiles to the correct boxes to complete the pairs.
    6·2 answers
  • Which neurotransmitters is a dissolved gas?
    11·1 answer
  • Sea corals live exclusively in the ocean and are radially symmetrical. They have microscopic stinging barbs that shoot out to im
    7·2 answers
  • At what stage and in what eon did the earth develop seasons?
    13·1 answer
  • How would the contractile vacuole of a freshwater amoeba respond if the organism was placed in seawater?
    11·2 answers
  • A cell membrane is more flexible than a brick wall. Why might many cells benefit from a flexible cell membrane? and A building h
    7·1 answer
  • Suppose a population of crabs in a certain tidal ecosystem thrives. These male crabs have one large claw and one small claw, but
    9·1 answer
  • Which of the following statements correctly identifies how geological evidence relates to models that have been proposed for the
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!