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
KIM [24]
3 years ago
5

Based on genomic studies, when did a change in gene sequences occur that lead to a change in the way that the brain processes sp

eech? between 1 and 6 million years ago between 4 and 9 million years ago between 10,000 and 100,000 years ago approximately 25,000 years ago approximately 12,000 years ago
Biology
2 answers:
xxTIMURxx [149]3 years ago
6 0
The answer for this question would be the second option. Genomic studies cover the analysis of the changes of genome by scanning the markers across complete sets of DNA. Based on these studies, the change in gene sequences happen that resulted to a change in the way that the brain interprets speech in between 4 and 9 million years ago.
patriot [66]3 years ago
3 0

Answer:

Option B, between 4 and 9 million years ago

Explanation:

It took million of years for human being to evolve from its ancestral animals. The time required to evolve was basically due to the time consumed in upgrading the cognitive thinking process of human being.

Nearly 2 million years were required to develop the cerebral cortex  and hence expand its abilities.

A gene named FOXP2 evolved by positive selection  and played an important role in the evolution of human speech and language.  It took nearly the same time by humans to develop speech as the time required by human to evolve from chimpanzees.

Hence, option B is correct

You might be interested in
Where does the blood go when its pumped out of the right ventricle?
aivan3 [116]

Answer:

the right ventricle pumps the oxygen-poor blood to the lungs through the pulmonary valve.

6 0
3 years ago
When condensation rates decrease, causing fewer clouds to form, how might humans change their behavior?
Vlad [161]

I don't think the answer is A as that seems a bit drastic, I think it's C.

4 0
3 years ago
Approximately how far, in cm, does the blood move during one beat? Express your answer to two significant figures and include th
Marysya12 [62]

Answer:

7.5cm

Explanation:

Velocity vs Time Graph:

When the object is going along the plane with velocity v at a particular time interval t we can explain it's motion via the velocity vs time graph. If the velocity of the object is constant then velocity vs time graph will produce a horizontal straight line. If the amount of differentiation of velocity of the object is positive and constant then the graph shows the linear line whose slope is is the same as the ratio of the change in velocity to the time interval.

Velocity vs time graph:

Is shown in the attached image

A velocity-time graph helps us to estimate the distance traveled by using the area under the graph.

Height of the triangle is the velocity (v) = 0.75m/s

The base of the triangle is the time interval (t) = 0.2sec

Distance travelled = Area of triangle

Distance travelled

= 1/2(V) * t

= 1/2(0.75m/s) * 0.2s

= 0.0075m

=7.5cm

Thus, during one beat blood flows  7.5 cm

3 0
3 years ago
6. What does a channel protein do for our cell membranes?
nevsk [136]
6. Channel proteins span the membrane and make hydrophilic tunnels across it, allowing their target molecules to pass through by diffusion.

7. They move freely around the membrane.

8. Binary fission is the division of a single entity into two or more parts and the regeneration of those parts separate the entities resembling the original.
7 0
1 year ago
What is not an example of an area that is likely to undergo primary succession?
Lynna [10]
The correct option is A.
Succession refers to the process by which the structure of a particular biological community evolves over a period of time. There are primary and secondary succession. Primary succession usually occur in an area in which the soil is not capable of sustaining the growth of plants. The options B, C and D given in the questions are examples of primary succession. 
6 0
2 years ago
Read 2 more answers
Other questions:
  • Where does the exchange of substances between the blood and cells of the body take place?
    6·2 answers
  • true or false scientists must be careful not to use inductive reasoning because it can lead to faulty conclusions
    13·1 answer
  • Scarlet
    10·1 answer
  • For a prokaryotic gene, basal transcription is defined as
    7·1 answer
  • Which of the following best describes how meiosis helps maintain genetic variation?
    9·1 answer
  • Please help please and thank you
    8·1 answer
  • Technology has improved the accuracy of weather
    11·1 answer
  • What would the dna look like if it was made from dna with the following sequences?
    6·1 answer
  • Design an experiment where you would determine how quickly lactaid works to break down milk sugar
    5·1 answer
  • Identify the type of energy described in each sentence
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!