Answer:
keratin.
Explanation:
<em>keratin is a fibrous protein that has protective and structural functions in the body. </em>
<em>to fulfil it's functional necessities keratin has characteristics that makes it insoluble and repellent to damage.</em>
<em>to fulfil it's functional necessities keratin has characteristics that makes it insoluble and repellent to damage.in the human body, keratin can be present in - hair and finger nails. </em>
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<span>DNA provides instructions for RNA polymerase
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Answer:
The nucleus tells other parts of the cell what to do
Explanation:
Answer:
A Bengal tiger that lives and hunts alone in the forest
an adult meerkat that watches for predators while young meerkats play
male mountain goats that compete for the chance to mate with a female
The antibodies to the HIV virus may take up to three months to appear in the blood of the infected person.
Therefore, the second blood test is necessary three months after a person thinks that he/she has been exposed to HIV to check the presence of these antibodies and confirm whether the person is infected or not.