Answer:
Even after an infection is over, your immune system continues to make antibodies. Once you test positive for the bacteria, your blood will continue to test positive for months or years even after the bacteria are no longer present.
Explanation:
using brain
3 or 4 because asexuals feel 0 sexual attraction
Answer:
rough ER → ER-to-Golgi transport vesicles → Golgi cisternae → secretory or transport vesicles → cell surface (exocytosis)
Explanation:
Proteins go through the secretory pathway.
Answer:
C.
Explanation:
Hydrogen's pure form is gas at room temperature. Helium is expensive. Hydrogen is lighter than helium.
