Answer:
D) Encloses specific structures
The plasma membrane keeps certain things out.
Explanation:
The primary function of the plasma membrane is to protect the cell from its surroundings.
Answer:
The answer is
Carries oxygen poor blood from the heart to the lungs
Hope this helps
RNA is composed of four nucleotides: adenine (A), guanine (G), cytosine (C), and uracil (U). Three adjacent nucleotides constitute a unit known as the codon, which codes for an amino acid.
Mass needs weight, mass = weight