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
Alenkasestr [34]
3 years ago
5

What is the function of the protein keratin?

Biology
2 answers:
nexus9112 [7]3 years ago
4 0
The correct answer to this question is:
<span> to provide support and structure for cells in hair, skin, and nails</span>
solmaris [256]3 years ago
3 0
The answer to the question is A
You might be interested in
A neutron star collapses into a black hole because of the force of (fusion,gravity)
stealth61 [152]
Gravity

Neutron stars are the most extreme and fascinating objects known to exist in our universe: Such a star has a mass that is up to twice that of the sun but a radius of only a dozen kilometers: hence it has an enormous density, thousands of billions of times that of the densest element on Earth. An important property of neutron stars, distinguishing them from normal stars, is that their mass cannot grow without bound. Indeed, if a nonrotating star increases its mass, also its density will increase. Normally this will lead to a new equilibrium and the star can live stably in this state for thousands of years. This process, however, cannot repeat indefinitely and the accreting star will reach a mass above which no physical pressure will prevent it from collapsing to a black hole. The critical mass when this happens is called the "maximum mass" and represents an upper limit to the mass that a nonrotating neutron star can be.

However, once the maximum mass is reached, the star also has an alternative to the collapse: it can rotate. A rotating star, in fact, can support a mass larger than if it was nonrotating, simply because the additional centrifugal force can help balance the gravitational force. Also in this case, however, the star cannot be arbitrarily massive because an increase in mass must be accompanied by an increase in the rotation and there is a limit to how fast a star can rotate before breaking apart. Hence, for any neutron star, there is an absolute maximum mass and is given by the largest mass of the fastest-spinning model.
7 0
3 years ago
The change in time for the first quarter is
Gemiola [76]

Answer:

The change in time for the first quarter is 2.07 seconds.

The change in time for the second quarter is 1.09 seconds.

The change in time for the third quarter is 0.95  seconds.

The change in time for the fourth quarter is  0.81 seconds.

Explanation:

This is for table C

8 0
3 years ago
What happens during photophosphorylation
tino4ka555 [31]
<span>energy from the sunlight uses electrons to make ATP.</span>
6 0
3 years ago
Read 2 more answers
Which of the following has been used to explain why people are more likely to develop phobias of certain animals or situations,
Rina8888 [55]

Answer:

B. biological preparedness

Explanation:

4 0
3 years ago
HELP ME PLEASE.............
mamaluj [8]

Answer: it’s 2n

Explanation:

5 0
3 years ago
Other questions:
  • What is the malthusian limit<br>​
    5·1 answer
  • What is said to be 'paid back' by the oxidation of lactic acid after anaerobic respiration?
    5·1 answer
  • Does a screw change the size of the effort force, the direction of the force, or both?
    14·2 answers
  • Organisms having eggs and sperm are said to be:
    13·2 answers
  • In one experiment, 100g of starch was broken down by the enzyme in 8 minutes. Calculate the rate of this reaction in terms of am
    9·1 answer
  • THIS IS MY SCIENCE HW
    13·1 answer
  • Does the volume you plate in the viable count method affect<br> thefinal calculation of cells/ml?
    11·1 answer
  • Chapter 3 Study Guide (Connect-ED)
    14·1 answer
  • Why are surface antigens on sperm cells not recognized as “self,” and why do they require a blood-testis barrier to prevent anti
    14·1 answer
  • What's stock exchange? anyone bor ed and down to talk?
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!