(Question)
Q: Single bonds allow the atoms they join to rotate freely about the what? Choices: - nucleus - electron shell - atomic orbit - bond axis A:
(Answer)
bond axis

(Question)
Q: Venus rotates slowly in a direction opposite to the direction of what? Choices: - the Earth's orbit - the orbit of Mars - the sun - its orbit A:
(Answer)
its orbit

(Question)
Q: What was first discovered in songbirds that produce new neurons while learning songs? Choices: - proteins - Brain Cord - homeostasis - neurogenesis A:
(Answer)
neurogenesis