Simple Invertebrates

Question 1

an animal phylum comprising the sponges.

Answer 1

Porifera

Question 2

any invertebrate animal, hydra, jellyfish, sea anemone belonging to the phylum Cnidaria, characterized by the specialized stinging structures .

Answer 2

Cnidaria

Question 3

Phylum includes earth worms and their relatives

Answer 3

Annelida

Question 4

eader in advanced marine robotics specifically, Autonomous Underwater Vehicles

Answer 4

Hydroid

Question 5

free-swimming jellylike bell- or saucer-shaped body that is typically transparent and has stinging tentacles around the edge.

Answer 5

Jellyfish

Question 6

phylum of flatworms having a flat, bilaterally symmetric body and no body cavity including the tapeworms and flukes

Answer 6

Platyhelminthes

Question 7

phylum of worms including species parasitic in humans and plants as well as free-living nonparasitic species in soil or water.

Answer 7

Nematoda

Question 8

small nematode worm that is an internal parasite of vertebrates.

Answer 8

Pinworms

Question 9

a parasitic flatworm, the adult of which lives in the intestine of humans and other vertebrates.

Answer 9

Tapeworms

Question 10

aquatic mollusk that has a compressed body enclosed within a hinged shell, such as oysters, clams,

Answer 10

Bivalves

Question 11

active predatory mollusk of the large class Cephalopoda, such as an octopus or squid.

Answer 11

Cephalopods

Question 12

mollusk of the large class Gastropoda, such as a snail, slug, or whelk.

Answer 12

Gastropds

Question 13

Any animal that possesses a coelom

Answer 13

Coelomate

Question 14

invertebrate lacking a coelom

Answer 14

Acoelmate

Question 15

arrangement of parts of an organism around a single main axis

Answer 15

Radial Symmetry

Question 16

being divisible into symmetrical halves on either side of a unique plane.

Answer 16

Bilateral Symmetry

Question 17

slender flexible limb or appendage in an animal, especially around the mouth of an invertebrate, used for grasping, moving about, or bearing sense organs.

Answer 17

Tentacle

Question 18

An explosive cell containing one giant secretory organelle

Answer 18

Cnidocyte

Question 19

outermost layer of cells or tissue of an embryo in early development,

Answer 19

Ectoderm

Question 20

innermost layer of cells or tissue of an embryo in early development, or the parts derived from this, which include the lining of the gut and associated structures.

Answer 20

Endoderm

Question 21

female reproductive organ in which ova or eggs are produced,

Answer 21

Ovary

Question 22

organ that produces male reproductive cells

Answer 22

Teste