1answer.
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
Lelechka [254]
3 years ago
9

What is the basis for the use of a molecular clock to determine the absolute time of evolutionary change?

Biology
1 answer:
dedylja [7]3 years ago
7 0

Nucleotide substitutions in a gene occur at a relatively constant rate.

A nonsynonymous substitution is a nucleotide mutation that alters the amino acid sequence of a protein. Nonsynonymous substitutions differ from synonymous substitutions, which do not alter amino acid sequences and are (sometimes) silent mutations.

You might be interested in
Why is it an advantage for plants to be multicellular
grigory [225]

Answer:

they advantages of an increase in size without its limitations

Explanation:

7 0
3 years ago
Disorientation and loss of motor control can result from
kari74 [83]
<span>Hypothermia is a condition that can cause a person to feel disorientated and result in the loss of motor control. Hypothermia is a grave condition that takes place when your body loses heat faster than it can produce it, resulting in a body temperature that is dangerously low.</span>
4 0
3 years ago
Which of the following is not normally filtered out of the blood in the kidney?
Anna11 [10]

Answer:

Your kidneys also remove acid that is produced by the cells of your body and maintain a healthy balance of water, salts, and minerals—such as sodium, calcium, phosphorus, and potassium—in your blood. Without this balance, nerves, muscles, and other tissues in your body may not work normally.

5 0
3 years ago
What are seismic waves?
Len [333]

Answer:

an elastic wave in the earth produced by an earthquake or other means.

Explanation:

earthquake, surface

primary wave

;)

4 0
3 years ago
Ecologists often use modeling, instead of field studies, because it
ANEK [815]

Answer:

Answer is A. allow them to control all the variables involved.

Explanation:

Modelling in ecology means the use of constructed mathematical models for understanding of ecological processes and to predict or know how real it is for ecosystem to change.

Ecological modelling is useful in defining problems more precisely and clarity of concepts.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Any electricity charged object crates an electric field.Walking across carpet In wool socks can create charge.This observation i
    11·1 answer
  • Which of the following is a limited resource, which can take longer to be replenished than it takes to be used up? A. Copper met
    5·1 answer
  • True or false? the lungs of humans form from the embryonic foregut.
    15·1 answer
  • What is the probability that both parents are tall will have a short child.
    15·1 answer
  • What are non examples of biome?
    12·2 answers
  • What is not a method for disposing of hazardous wastes?
    11·1 answer
  • 35 points.<br><br> Indentify bi-products of synthetic materials
    13·1 answer
  • Mitosis is a part of interphase in the cell cycle. <br><br> true<br> false
    10·2 answers
  • The blood flow through the kidney is special because:.
    5·1 answer
  • Because the skin sloughs off on a regular basis, the most superficial layer of the epidermis is primarily composed of what type
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!