simple inverterbrate

Question 1

Porifera

Answer 1

a phylum of primitive invertebrate animals comprising the sponges and having a cellular grade of construction without true tissue or organ formation

Question 2

Cnidaria

Answer 2

characterized by the specialized stinging structures in the tentacles surrounding the mouth; jellyfish,coral, sea anenome

Question 3

Annelida

Answer 3

characterized by an elongated, cylindrical body divided into ringlike segments.

Question 4

Hydroid

Answer 4

a simple cylindrical body with a mouthlike opening surrounded by tentacles.

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

are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.

Question 7

Nematoda

Answer 7

having a tough outer cuticle.

Question 8

Pinworms

Answer 8

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

Question 9

Tapeworms

Answer 9

with bothria that aid in attaching to their host

Question 10

Bivalves

Answer 10

having a shell consisting of two halves hinged together. Clams, oysters, scallops, and mussels

Question 11

Gastropods

Answer 11

usually with a univalve shell or none and a distinct head bearing sensory organs.

Question 12

Coelomate

Answer 12

a complete lining called peritoneum derived from mesoderm

Question 13

Acoelomate

Answer 13

an invertebrate lacking a coelom especially : one belonging to the group comprising the flatworms and nemerteans and characterized by bilateral symmetry and a digestive cavity that is the only internal cavity.

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

balanced distribution of duplicate body parts or shapes within the body of an organism.

Question 17

Tentacle

Answer 17

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

Question 18

Cnidocyte

Answer 18

is an explosive cell containing one giant secretory organelle or cnida (

Question 19

Ectoderm

Answer 19

m is one of the three primary germ layers in the very early embryo.

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, in which the ova and the hormones that regulate female secondary sex characteristics develop

Question 22

Teste

Answer 22

produce and store sperm and are also the body’s main source of male hormones, such as testosterone. These hormones control the development of the reproductive organs and other male characteristics, such as body and facial hair, low voice, and wide shoulders.