Question 1

A trait that helps an organism survive and reproduce

Accepted Answer

adaptation

Question 2

Body parts radiating from a central point, like spokes of a wheel

Accepted Answer

radial symmetry

Question 3

Body plan with two halves that are mirror images.

Accepted Answer

bilateral symmetry

Question 4

a lack of symmetry

Accepted Answer

asymmetry

Question 5

Back or top of the body

Accepted Answer

dorsal

Question 6

stomach or bottom

Accepted Answer

ventral

Question 7

Front or head end

Accepted Answer

Question 8

back end of organism

Accepted Answer

posterior

Question 9

An animal with a backbone

Accepted Answer

vertebrate

Question 10

Sponges

Accepted Answer

Phylum Porifera

Question 11

-soft bodies, carnivorous animals

Accepted Answer

Phylum Cnidaria

Question 12

See image

Accepted Answer

-have stinging tentacles

Question 13

See image

Accepted Answer

-simplest animal to have specialized tissues.

Question 14

See image

Accepted Answer

(coral, sea anemones, hydra, jelly fish)

Question 15

flatworms (flukes, planarians, tapeworm)

Accepted Answer

Phylum Platyhelminthes

Question 16

roundworms (trichinella, hookworms, pinworm)

Accepted Answer

Phylum Nematoda

Question 17

segmented worms (earthworm), leach

Accepted Answer

Phylum Annelida

Question 18

an animal without a backbone

Accepted Answer

invertebrate

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