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
Ahat [919]
4 years ago
10

Reasons for hair loss

Biology
1 answer:
Aleksandr [31]4 years ago
6 0

A variety of conditions can cause hair loss, including:

<span><span>Hormonal changes: Hormonal changes and imbalances can cause temporary hair loss. This could be due to pregnancy, childbirth or the onset of menopause. Hormone levels are also affected by the thyroid gland, so thyroid problems may cause hair loss.
</span><span>Patchy hair loss: This type of nonscarring hair loss is called alopecia areata (al-o-PEE-she-uh ar-e-A-tuh). It occurs when the body's immune system attacks hair follicles — causing sudden hair loss that leaves smooth, roundish bald patches on the skin.
</span><span>Scalp infections: Infections, such as ringworm, can invade the hair and skin of your scalp, leading to scaly patches and hair loss. Once infections are treated, hair generally grows back.
</span><span>Other skin disorders: Diseases that cause scarring alopecia may result in permanent loss at the scarred areas. These conditions include lichen planus, some types of lupus and sarcoidosis.
</span><span>Hair-pulling disorder: This condition, also called trichotillomania (trik-o-til-o-MAY-nee-uh), causes people to have an irresistible urge to pull out their hair, whether it's from the scalp, the eyebrows or other areas of the body.</span></span>
You might be interested in
The ozone layer is important because______
tamaranim1 [39]
<span>It absorbs and protects us from ultraviolet radiation from the sun </span>
4 0
3 years ago
Read 2 more answers
An experiment in which only one variable is changed is a(an) __________ experiment.
MrMuchimi

Answer;

D. controlled

An experiment in which only one variable is changed is a controlled experiment.

Explanation;

-A control experiment is an experiment where the researcher only changes one variable at a time in order to isolate the results.

In a controlled experiment, most conditions are constrained so that they do not change. One or two other conditions are then changed and measured by the experimenter. These are known as the independent variables.

For example; An experiment where all subjects involved in the experiment are treated exactly the same except for one deviation.

6 0
4 years ago
Read 2 more answers
How are populations, ecosystems, and communities related? (1 point)
nata0808 [166]
<span>The correct answer is option D.An ecosystem consists of a population of organisms and its physical environment, and a population is made up of many different communities of organisms. An ecosystem is a bilogical system of populations and environment. And a population consists many communities and finally the communities are nade up of organisms.</span>
3 0
4 years ago
Read 2 more answers
Look at the following energy pyramid. If the producers have 7000 kcal of energy, how much energy will be available for theSheeph
andrey2020 [161]

The question is incomplete as figure is missing which is attached.

Answer:

C) 70 Kcal

Explanation:

In a food chain, the energy is transferred from one trophic level to another trophic level following a mathematical law given by Lindeman called ten per cent law which states that only 10% of the total energy is transferred from one trophic level to another level.

In the given question since the shepherd is considered the secondary consumer or the third level which feeds on the primary consumer therefore by ten per cent law, the primary consumer receives only 70 kcal and the secondary consumers that are sheepshead receive only 7kcal.

Thus, C) 70 Kcal is the correct answer.

7 0
3 years ago
Read 2 more answers
Which traits are polygenic traits? Check all that apply.
Mashutka [201]

Height is a polygenic trait, controlled by at least three genes with six alleles. If you are dominant for all of the alleles for height, then you will be very tall. There is also a wide range of skin color across people. Skin color is also a polygenic trait, as are hair and eye color.

All the above:

Eye color

height

skin color

4 0
4 years ago
Other questions:
  • Tropical regions commonly have thunderstorms because of all the a)pressure b)oxygen c) carbon dioxide d)latent heat released fro
    9·2 answers
  • A patient reports persistent nasal blockage, nasal discharge, and facial pain lasting on the right side for the past 4 months. t
    9·1 answer
  • What natural resources are pumped from the ocean
    13·1 answer
  • A correlation is a scientific principle that explains many observations. True or false?
    9·2 answers
  • The scientific name of a plant includes the
    8·1 answer
  • Plant growers sometimes sterilize their potting soil by heating it to high temperatures to kill pathogens that might be in the s
    15·2 answers
  • In airports, the control tower functions in directing air traffic and keeping all flights running smoothly like a command center
    12·2 answers
  • A nurse is caring for a client with alcoholism who has been admitted for detoxification. when should the nurse expect the effect
    15·1 answer
  • Which is an advantage of producing genetically engineered crops that have pest-resistant genes?
    15·1 answer
  • Difference between phagocytes and red blood cells
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!