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
Nookie1986 [14]
4 years ago
8

Explain what happens to the bands A,I,H when aconraction occurs in the muscles.

Biology
1 answer:
worty [1.4K]4 years ago
4 0

Answer:

The functional unit of a muscle cell is known as a "sarcomere" which covers the distance between the two Z-lines.

The sarcomere consists of A-zone which contains both thick and thin filaments, H-zone which contains only thick filaments and I band which contains only thin filaments.

During muscle contraction, thick and thin myofibrils slide over each other due to which the distance between two z-line get reduced. The H and I zone gets shortened but A zone does not shorten but come close to other A- bands and disappears.

You might be interested in
If the phenotype is much more common in males, then the gene is likely on the?
Vladimir [108]
A. autosomal chromosome
3 0
3 years ago
Which of the following is a testable scientific question?
nika2105 [10]

Answer:

the second one I'm not sure

3 0
3 years ago
Vascular tissue through which water and minerals travel
Ierofanga [76]
Xylem transports water and minerals from the roots to the leaves of the plant, where it is used in the production of food.
3 0
4 years ago
Name the process that causes water to flow into organisms
Oliga [24]
Osmosis is a passive transport which moves water molecules from higher to lower gradient.
<span>Osmosis then is the movement of water particles from which has water and from which has not and to provide it with the sufficient H2O.<span> 

</span></span><span>The concentration of salt in water affects the rate of osmosis because it will determine how much water should be transported or excreted or to be taken in. The cellular process is keen to the salt concentration of its system thus making sure to maintain balance between the salt concentration the right amount of water must also be in its area of release for any expected occurences.<span>
</span></span>
3 0
3 years ago
Q.which bird don't make its own nest?​
Klio2033 [76]

The common cuckoo does not make a nest of its own, and they do not bring up their own young. Instead, the female lays her eggs in the nests of other birds. Each female cuckoo specialises in just one host species, and lays camouflaged eggs in that bird's nest.

8 0
3 years ago
Read 2 more answers
Other questions:
  • The purpose of metaphylaxis is to:
    9·1 answer
  • Which animal can swim underwater walk on land and has a big bite?
    7·2 answers
  • Assume that blending inheritance, not particulate Mendelian inheritance is operating in a life form. An individual with a tail t
    13·1 answer
  • Which of the following explains why water is an example of a nonmineral resource?
    8·2 answers
  • New traits and variations in a population occur by
    10·1 answer
  • Proteins carry out cellular functions.
    15·2 answers
  • 3. In pea plants, inflated pods are dominant to constricted pods.
    7·1 answer
  • Peter suffers damage to his left frontal lobe and loses the ability to speak, although he can still understand speech. Despite t
    9·1 answer
  • 19) what does this mean that “cells turn on different genes”?
    6·1 answer
  • Explain the statement, “THE PRESENT IS THE KEY TO THE PAST”.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!