Invertebrate Animal

Question 1

Vertebrates

Answer 1

an animal that has a backbone

Question 2

Invertebrates

Answer 2

an animal that does not have a backbone

Question 3

Consumer

Answer 3

an organism that eats other organisms or organic matter

Question 4

Ganglion

Answer 4

a mass of nerve cells

Question 5

Gut

Answer 5

the digestive tract

Question 6

Coelom

Answer 6

a body cavity that contains the internal organs

Question 7

Bilateral Symmetry

Answer 7

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

Question 8

Radical Symmetry

Answer 8

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

Question 9

Asymmetry

Answer 9

lack of equality between parts or aspects of something; lack of symmetry

Question 10

Sponge

Answer 10

a primitive sedentary aquatic invertebrate with a soft porous body that draw in a current of water to extract nutrients and oxygen

Question 11

Cnidarians

Answer 11

an aquatic invertebrate animal of the phylum Cnidaria, which comprises the coelenterates

Question 12

Flatworms

Answer 12

a worm of a phylum that includes the planarians together with the parasitic flukes and tapeworms

Question 13

Roundworms

Answer 13

a nematode, especially a parasitic one found in the intestines of mammals

Question 14

Mollusks

Answer 14

an invertebrate of a large phylum that includes snails, slugs, mussels, and octopuses

Question 15

Open circulatory system

Answer 15

pump blood into a hemocoel with the blood diffusing back to the circulatory system between cells

Question 16

Closed circulatory system

Answer 16

have the blood closed at all times within vessels of different size and wall thickness

Question 17

Annelid worms

Answer 17

any of various worms or wormlike animals of the phylum Annelida characterized by an elongated, cylindrical body divided into ringlike segments

Question 18

Exoskeleton

Answer 18

a rigid external covering for the body in some invertebrate animals, providing support and protection

Question 19

Compound eye

Answer 19

an eye consisting of an array of numerous small visual units, as found in insects and crustaceans

Question 20

Antenna

Answer 20

either of a pair of long, thin sensory appendages on the heads of insects, crustaceans, and some other arthropods

Question 21

Metamorphosis

Answer 21

(in an insect or amphibian) the process of transformation from an immature form to an adult form in two or more distinct stages

Question 22

Endoskeleton

Answer 22

an internal skeleton, such as the bony or cartilaginous skeleton of vertebrates

Question 23

Water vascular system

Answer 23

a system of canals in echinoderms containing a circulating watery fluid that is used for the movement of the tentacles and tube feet