Vocab

Question 1

Porifera

Answer 1

is a phylum that includes the organisms known as sponges

Question 2

Cnidaria

Answer 2

any invertebrate animal, as a hydra, jellyfish, sea anemone, or coral

Question 3

Annelida

Answer 3

Any of various worms or wormlike animals

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

a free-swimming marine coelenterate that is the sexually reproducing form of a hydrozoan or scyphozoan and has a nearly transparent saucer-shaped body and extensible marginal tentacles studded with stinging cells.

Question 6

Platyhelminthes

Answer 6

a phylum of worms having bilateral symmetry and a soft, usually flattened body, comprising the flatworms

Question 7

Nematoda

Answer 7

Several nematodes, such as pinworm, roundworm, filaria, and hookworm, are parasites on animals and humans and cause disease

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 of the class Cestoda, characterized by possessing a scolex (head) with bothria that aid in attaching to their host, as well as a thin, long strobila body resembling a strip of tape or ribbon

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 (Gastropoda) of mollusks (as snails and slugs) usually with a univalve shell or none and a distinct head bearing sensory organs.

Question 12

Coelomate

Answer 12

have a fluid filled body cavity called a coelom with a complete lining called peritoneum derived from mesoderm (one of the three primary tissue layers).

Question 13

Acoelomate

Answer 13

an invertebrate lacking a coelom

Question 14

Radial Symmetry

Answer 14

symmetry around a central axis, as in a starfish or a tulip flower.

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, so that the organism or part can be divided into two equal halves

Question 17

Cnidocyte

Answer 17

is an explosive cell containing one giant secretory organelle or cnida

Question 18

Tentacle

Answer 18

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

Question 19

Ectoderm

Answer 19

The outermost of the three primary germ layers of an embryo, from which the epidermis, nervous tissue, and, in vertebrates, sense organs develop.

Question 20

Endoderm

Answer 20

The innermost of the three primary germ layers of an animal embryo, developing into the gastrointestinal tract, the lungs, and associated structures

Question 21

Ovary

Answer 21

One of the paired female reproductive organs that produce eggs and female sex hormones in humans and other vertebrates.

Question 22

Teste

Answer 22

The male sex gland