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
GalinKa [24]
3 years ago
10

Closure of the atriventricular valve occurs when:

Biology
1 answer:
elena55 [62]3 years ago
4 0

Answer:

The correct answer will be option A.

Explanation:

The atrioventricular valve is one of the four valves present in the heart the function of which is to stop the back flow of the blood from the ventricles to the atrium.  

These valve opens and closes in response to the change in the pressure of the blood in atrium and ventricles.  The valve opens when blood is pumped form the atrium to ventricles which causes the papillary muscles to relax while the valve closes when the ventricles push the blood to the arteries. This causes the papillary muscle to contract which causes the chordate tendineae to create tension ad close the valve.

Thus, option A is the correct answer.

You might be interested in
Which of the following statements is most accurate or true?
attashe74 [19]

Answer:

c. the neutral theory posits that the vast majority of mutations do not influence the fitness of individuals

Explanation:

The neutral theory proposed by Motoo Kimura states that the vast majority of changes at the molecular level (DNA) in a population happens due to genetic drift, not by natural selection, this implies that the mutations are neutral and do not give an advantage to the organisms.  

This means that mutant alleles are preserved due to the randomness of life and not because this alleles give selective advantage over other individuals of the population.

4 0
4 years ago
Which of the following activities are examples of data organization and analysis?. . check all that apply. . . A. Drawing a pie
Nimfa-mama [501]
Data organization refers to the method of classifying and organizing sets of data to make them more useful. Analysis is a detailed examination of something. It is what you do with the data you collected. Based on this, we can say that B, counting the number of fish for each species, and D, transferring the data from the fish counter to a computer program would both be examples of data organization and analysis. 
4 0
3 years ago
Read 2 more answers
A patient who just suffered a hemorrhagic stroke is brought to the emergency department by ambulance. what should be the nurse's
Travka [436]
Cardiac and Respiratory status
5 0
3 years ago
Question 4
olga55 [171]

Answer:

hii friend follow me me please

8 0
3 years ago
Hey there! I was wondering if someone could explain what the integumentary muscles do in the body!
Crazy boy [7]
It consists of skin, hair, nails, and glands. The skin protects the body from the environment on the outside. It also functions to retain body fluids, protect against disease, eliminate waste products, and regulate body temperature. It also helps store fat and water.
Hope This Helps!
8 0
3 years ago
Other questions:
  • In which situation would the heterozygous phenotype be somewhere between (a blending of) the two homozygous phenotypes? a) co do
    10·1 answer
  • Substances in food or supplements that destroy free radicals and slow their formation are
    9·1 answer
  • You performed a blood typing activity as described in the lab manual. you observed agglutination (clumping) with anti-b and anti
    11·1 answer
  • Which cells in your body undergo cellular respiration?
    11·2 answers
  • Distinguish between eukaryotic and prokaryotic binary fission.
    14·1 answer
  • I’m confused is it B or D or what?
    13·2 answers
  • What do you like and dislike about today?
    14·2 answers
  • Why might it be an issue to cut the trees down to build a home/shelter? How would that impact the respiration/photosynthesis cyc
    11·2 answers
  • An explanation for behavior must be __________ and __________ to be considered a scientific theory. A. Repeated. . . Recorded B.
    5·1 answer
  • What is the function of DNA​
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!