Q: The primary lymphoid organs are the bone marrow and what else? Choices: - pinneal gland - thyroid - kidneys - thymus gland A:
thymus gland

Q: Animal cells grow mainly by synthesizing protein-rich cytoplasm, a process that is described as expensive in what way? Choices: - calorically - synthetically - time spent - metabolically A:
metabolically

Q: What is the process in which producers get their energy from sources other than the sun? Choices: - electrolysis - phototropism - biosynthesis - chemosynthesis A:
chemosynthesis