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vitfil [10]
3 years ago
12

A substance that can protect a person's cells from being damaged or destroyed by certain harmful factors is a (an) ________.

Biology
1 answer:
dmitriy555 [2]3 years ago
4 0
Cell membrane or in planet cells: cell wall AND membrane
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Klinefelter syndrome in humans leads to underdeveloped testes and sterility. this is caused by which chromosomal condition?
Anuta_ua [19.1K]
Klinfelters syndrome is when there is an extra X chromosome in males.

So instead of the normal sex chromosomes for males (XY), a male with klinefelters syndrome will have XXY.

I have included a pic of the karyotype to give you a better idea of what I'm talking about.

Hope this helps! I'm happy to help with any other questions you might have :)

4 0
3 years ago
describe how the sweat glands and the hair erector muscles function in mammals when the external environment is hot
Bad White [126]

Answer:

They lie flat when we are warm, and rise when we are cold. The hairs trap a layer of air above the skin, which helps to insulate the skin against heat loss. For example, if we become too cold, the hair erector muscles contract.

Explanation:

4 0
2 years ago
Deforestation leads to fewer plants being available to conduct photosynthesis. Which of these is a possible effect on the remain
Sever21 [200]

Deforestation leads to fewer plants being available to conduct photosynthesis. Less oxygen is available for cellular respiration is a possible effect on the remaining plant populations.

<u>Explanation:</u>

  • Deforestation and Photosynthesis are related to each other. Because if Deforestation occurs more photosynthesis will reduce.
  • Cutting and burning down of the trees causes deforestation as it affects photosynthesis. Plants prepare food using photosynthesis.
  • The plant takes carbon-di-oxide for the preparation of food and releases oxygen. Oxygen is required for every living thing in the world.
  • As now World goes on deforestation and it should be seriously stopped.
7 0
3 years ago
If a claim is mainly supported by anecdotal evidence (stories or claims by people), It is<br> likely
Ganezh [65]

Answer:

Biased.

Explanation:

Anecdotal evidence is described as the evidence that is based entirely upon an individual's personal experiences or observations.

As per the question, a claim based on such evidence is most likely to be <u>biased</u> as anecdotal evidence is based on a limited selection of examples that either support or refute the claim but not supported by any scientific or statistical analysis. Due to this undue bias, <u><em>anecdotal evidence is not considered reliable as it displays the personal opinion, feeling, or experience of an individual</em></u>. Thus, <em>it may be used to negate the general statements but not to support r substantiate a claim or argument</em>.

3 0
3 years ago
2019-20 Biology CR<br> Why is it important to classify the millions of species on Earth?
BigorU [14]

Answer:

It is important to classify the millions of species on Earth because it makes study of organisms easier. Classification occurs on the basis of similarities and differences that is present among the organisms. Organisms are placed in one group if they are similar in characteristics. For example, those organisms which are placed in animals have the ability to move from place to place and unable to make their own food.

5 0
3 years ago
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