Please help me. I will give you branlist

Which group of algae is characterized by unicellular organisms and includes some members that would be better classified as zooflagellates? euglenophytes red algae sporozoans green algae

Aincludes all the ways an organism lives and interacts with its environment. a. population b. habitat c. ecosystem d. niche

Ineed your . i'm thinking the answer is none of the above. i know the answer isn't isogamous. the human gametes are: isogamous anisogamous oogamous none of the above