At Least Five of These Have Occurred in Earth's History,one

question 23

Multiple Choice

At least five of these have occurred in Earth's history,one of which occurred 65 million years ago and wiped out the dinosaurs.

• A)mass extinction event
• B)punctuated equilibrium
• C)millennia-long drought
• D)phylogenetic tree

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Definitions:

Oxytocin

Oxytocin is a hormone and neurotransmitter involved in childbirth, lactation, and the regulation of social bonding and trust.

Tropic Hormones

Tropic hormones are hormones that have other endocrine glands as their target. They are secreted by the anterior pituitary gland and stimulate the release of other hormones.

Follicle-stimulating Hormone

A hormone secreted by the pituitary gland that promotes the growth of ovarian follicles in females and spermatogenesis in males.

Luteinizing Hormone

A hormone produced by the anterior pituitary gland that triggers ovulation and stimulates the production of progesterone in females, and testosterone in males.