Answer:
A. Pores
Explanation:
To be considered nuclei, the DNA membrane structures have to have pores.
Nuclear pores are necessary to connect the nucleus with the cytoplasm, and to regulate the transportation of materials between the two areas.
So, the correct answer is A.
Answer:
500 amino acids
500 codons
Yes
Explanation:
A codon is a set of 3 base pairs. Each codon codes for a specific amino acid. So the ratio between codon and amino acid is 1:1 and the ratio between base pairs and codon is 3:1.
If you have 1,500 base pairs then we can mathematically solve the number of codons:

Since the ratio of codon to amino acid is 1:1, then for every 500 codons, there are 500 amino acids.
I hope this helps clear it up a bit for you.
<span>The general sense found in the skin are:
a. Tactile - simply called the sense of "touch"
b. Pressure - a heavy touch (receptors for both tactile and pressure are called mechanoreceptors)
c. Temperature - the skin determines whether the environment is hot or cold (Thermoreceptors)
d. Pain - when the tissue is damaged
e. Vibration </span>
Because a cap is something on top like the armour