(Question)
Q: What is the inner cell mass formed by the cells of the blastocyst called? Choices: - xerophyte - amniotic cavity - ectoderm - embryoblast A:
(Answer)
embryoblast

(Question)
Q: What is the major selective advantage of myelination? Choices: - heat regulation - potentiation - storage capacity - space efficiency A:
(Answer)
space efficiency

(Question)
Q: What causes acid rain? Choices: - carbon dioxide - heavy pollution - chemicals in waterways - air pollution A:
(Answer)
air pollution