Chapter 30

Question 1

Acoelomate

Answer 1

A bilaterian animal that lacks an internal body cavity (coelum)

Question 2

Carnivores

Answer 2

Animals that eat primarily other animals. Most mammals are carnivores and some plants as well

Question 3

Protostome

Answer 3

Development of the mouth before the anus

Question 4

Deuterostome

Answer 4

Development of the anus before the mouth (Humans)

Question 5

Endoderm

Answer 5

The innermost of the 3 basic germ layers in most animal embryos; gives rise to digestive tract and organs that connect to it.

Question 6

Sessile

Answer 6

Permanently attached to a substrate; not capable of moving to another location

Question 7

Hydrostatic

Answer 7

A system of body support involving a body wall in tension surrounding a fluid or soft tissue under compression

Question 8

Metamorphosis

Answer 8

Transition from one developmental stage to another, such as from the larval to the adult form of an animal

Question 9

Asexual reproduction

Answer 9

Any form of reproduction where offspring inherit DNA from only one parent. Includes binary fission, budding and parthenogenesis.