Answer:
(C)cell nuclei that contain DNA
Explanation:
They are eukaryotic, which means they have a nucleus. Most have mitochondria. They can be parasites. They all prefer aquatic or moist environments.
"REPRODUCTIVE ISOLATION" needs to occur for speciation to happen.....
Answer:
A cell uses active transport to move molecules across a cellular membrane when the molecules are being moved against a concentration gradient.
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