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
Galina-37 [17]
3 years ago
6

A molecule that can be used as a molecular clock has a neutral mutation rate of one mutation per 20 million years. How many year

s ago did two species share a common ancestor if the molecules found in these two species differ by a total of six mutations?
60 million years
120 million years
100 million years
30 million years
Biology
2 answers:
Firlakuza [10]3 years ago
6 0
120 million yrs
Bbchbvghnvfhbctbvt
Leviafan [203]3 years ago
3 0
The correct answer is 120 million years
You might be interested in
What is a scientific question that can be asked about the insect in the photo?
lidiya [134]
How does the indents appearance affect its survival
3 0
3 years ago
Which of the following best describes DNA in a prokaryotic cell?
Reil [10]
It is mRNA because it picks up the chromosome
6 0
3 years ago
Which of the choices below provide direct evidence of evolution
den301095 [7]
A and C


They both can be compared to present or past objects to show how they have changed or evolved over time
3 0
3 years ago
Read 2 more answers
Which of the following statements is subjective?
kobusy [5.1K]
Answer: 3. Chocolate is the best ice cream flavor

Explanation:

statements there are subjective are based on or influenced by personal feelings, tastes, or opinions.

#3 is a subjective statement because someone else may disagree with the person who said chocolate is the best ice cream flavor.
8 0
3 years ago
Read 2 more answers
The descending pathway from the red nucleus to the lower motor neurons is the __________ tract.
m_a_m_a [10]

Descending tracts are the pathways by which motor signals are pass through from the brain to lower motor neurones. Thus, all the neurones within the descending motor system are classed as upper motor neurones. The lower motor neurones then directly innervate muscles to produce movement. Their cell bodies are found in the cerebral cortex or the brain stem, with their axons remaining within the CNS.

4 0
4 years ago
Other questions:
  • Why does DNA flow toward the positive electrode of the gel chamber?
    12·1 answer
  • What is the process that occurs in the Vesicle? (Biology)
    9·1 answer
  • Which statement best fits the meaning of freedom of state" in the Texas Bill of Rights?
    5·1 answer
  • You have been asked to help a top nutrition researcher conduct human experiments on vitamin
    13·1 answer
  • What are the three things that a plant needs to make its own food matter? What happens when a plant does not get these things? *
    7·2 answers
  • A __________ is a piece of DNA that is transcribed.
    10·2 answers
  • Meaning of onion epidermal cell​
    8·1 answer
  • This organelle removes and recycles waste from the cell
    5·2 answers
  • Given the controversy over drilling for oil as well as transporting oil, what is a viable option for the future?
    11·1 answer
  • anyone can help me with this please??? (which bar graph could represent the reaction rates of a reversible reaction that has jus
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!