I'm pretty sure your answer should be D. Ship Ballast. Hope this helps! =^-^=
Pseudo vacuoles are not true organelles since they are just air bubbles which do not possess tonoplast and cell sap like real vacuoles. But they do help by increasing buoyancy of cells.
Answer:
A. H and O
Explanation:
Which two elements make up the most common compound in the human
body?
A. Hand o
B. Cand H
C. N and o
D. P and Ca
B. Populations are a group of the same species in a place at the same time.