Simple Invertebrate

Question 1

Porifera

Answer 1

A phylum of aquatic invertebrate animals that comprises the sponges

Question 2

Cnidaria

Answer 2

characterized by the specialized stinging structures in the tentacles surrounding the mouth

Question 3

Annelida

Answer 3

characterized by an elongated, cylindrical body divided into ringlike segments

Question 4

Hydroid

Answer 4

noting or pertaining to that form of hydrozoan that is asexual and grows into branching colonies by budding

Question 5

Jellyfish

Answer 5

free-swimming marine coelenterate that is the sexually reproducing form of a hydrozoan or scyphozoan and has a nearly transparent saucer-shaped body

Question 6

Plathyelminthes

Answer 6

Flatworms: phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.

Question 7

Nematoda

Answer 7

any unsegmented worm of the phylum

Question 8

Pinworms

Answer 8

A small nematoid worm that inhabits the rectum of the human host

Question 9

Tapeworms

Answer 9

Any of the ribbon-like parasitic worms

Question 10

Bivalves

Answer 10

Any of various mollusks of the class Bivalvia, having a shell consisting of two halves hinged together.

Question 11

Gastropods

Answer 11

any of a large class of mollusks

Question 12

Coelomate

Answer 12

have a body cavity called a coelom with a complete lining called peritoneum derived from mesoderm

Question 13

Acoelomate

Answer 13

an invertebrate lacking a coelom

Question 14

Radial Symmetry

Answer 14

a basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis

Question 15

Asymmetry

Answer 15

The lack or absence of symmetry

Question 16

Bilateral Symmetry

Answer 16

Symmetrical arrangement of an organism or part of an organism along a central axis

Question 17

Tentacle

Answer 17

A narrow, flexible, unjointed part extending from the body of certain animals, such as an octopus, jellyfish, or sea anemone.

Question 18

Cnidocyte

Answer 18

an explosive cell containing one giant secretory organelle or cnida

Question 19

Ectoderm

Answer 19

as the most exterior layer.

Question 20

Endoderm

Answer 20

The innermost of the primary germ layers of an animal embryo

Question 21

Ovary

Answer 21

the female gonad or reproductive gland

Question 22

Teste

Answer 22

The male gonad or reproductive gland