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liberstina [14]
3 years ago
11

Why is the skin a good defense for the immune system?

Biology
1 answer:
Pavel [41]3 years ago
6 0
Because it's an outer layer protecting everything inside the body, and we are practically covered in it with few opportunities / holes where bacteria can enter to cause difference to the immune system. 
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Explain how a mutation near, but outside of, the coding region of Pitx1 may cause a loss of pelvic fins without pleiotropic effe
ipn [44]

Since the Pitx1 gene codes for a protein crucial im lower limns development, a mutation occurring near Pitx1 gene will affect refikjs around the lower limbs but not those far away from it.

<h3>What are mutations?</h3>

Mutations refers to alterations or error that occur which change the original sequence of nucleotides in a DNA molecule.

The Pitx1 gene is a gene that codes for a protein that involved in development of the lower limbs.

A mutation near but outside of the coding region of Pitx1 may cause a loss of pelvic fins without pleiotropic effects on the pituitary gland and jaw because the pelvic fins form part of the lower limbs whole the jaws and the pituitary gland are not found in the lower limbs.

Therefore, the mutation occurring near Pitx1 gene will affect regions around the lower limbs but not those far away from it.

Learn more about mutation at: brainly.com/question/17031191

4 0
2 years ago
Our school library contains mostly outdated print reference materials and only one computer for student use. This creates a prob
Sergio [31]

What are some possible solutions to the problem in the e-mail? Check all that apply?

Answer:   B, C, E

B.  seek computer donations for school library

C.  raise money for newer reference materials

E.  enter into a lending agreement with the public library for updated print      materials

Explanation:

just took the check that all apply on edge c:

9 0
3 years ago
Read 2 more answers
Do you think that fungal cells have turgor pressure? Design an experiment to test your hypothesis.
valentinak56 [21]
Yes because they still need water to function. Fungal cells are interesting in that they have a cell wall like plant cells, but that cell wall ismade up of chitin.<span>They are also heterotrophic, normally feeding on dead organic material. Hope it helps. </span>
3 0
3 years ago
Please help! I cant figure it out! Does anyone know ? If the answer is correct ill mark you as the best answer!!
Triss [41]

Answer:

the cell wall

Explanation:

cell membrane is not rough and it doesn't support or protect the cell.

cytoplasm is the inner environment of the cell that includes organelles and nutritions. it's not rough and doesn't support or protect the cell.

6 0
3 years ago
What happens to light energy that is not absorbed?
Ratling [72]
When the light is not absorbed, it would reflect on the object.
6 0
3 years ago
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