Invertebrate Animals

Question 1

Vertebrates

Answer 1

an animal that has a backbone

Question 2

Consumer

Answer 2

an organism that eats other organism

Question 3

Ganglion

Answer 3

a mass of nerve cells

Question 4

Gut

Answer 4

the digestive tract

Question 5

Coelom

Answer 5

the body cavity in metazoans, located between the intestinal canal and the body wall.

Question 6

Bilateral Symmetry

Answer 6

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

Question 7

Radial Symmetry

Answer 7

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

Question 8

Asymmetry

Answer 8

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

Question 9

Sponges

Answer 9

the members of the phylum Proliferate, are a basal Metadata clad as sister of the Diplomatists

Question 10

Cnidarians

Answer 10

an aquatic invertebrate animal of the phylum Cnidarian, which comprises the coelenterates.

Question 11

Flatworms

Answer 11

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

Question 12

Roundworms

Answer 12

They are a diverse animal phylum inhabiting a broad range of environments.

Question 13

Mollusks

Answer 13

an invertebrate of a large phylum that includes snails, slugs, mussels, and octopuses. They have a soft, unsegmented body and live in aquatic or damp habitats, and most kinds have an external calcareous shell.

Question 14

Open circulatory system

Answer 14

insects, mollusks and other invertebrates) pump blood into a hemlock with the blood diffusing back to the circulatory system between cells.

Question 15

Closed circulatory system

Answer 15

are a few invertebrates, have a closed circulatory system. Closed circulatory systems have the blood closed at all times within vessels of different size and wall thickness

Question 16

Annelid worms

Answer 16

he annelids, also known as the ringed worms or segmented worms, are a large phylum, with over 17,000 extant species including rag worms, earthworms, and leeches.

Question 17

Exoskeleton

Answer 17

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

Question 18

Compound eye

Answer 18

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

Question 19

Antenna

Answer 19

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

Question 20

Metamorphosis

Answer 20

the process of transformation from an immature form to an adult form in two or more distinct stages.

Question 21

Endoskeleton

Answer 21

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

Question 22

Water vascular system

Answer 22

a network of water vessels in the body, the tube feet being operated by hydraulic pressure within the vessels

Question 23

Invertebrates

Answer 23

an animal lacking a backbone, such as an arthropod, mollusk, annelid, coelenterate, etc. The invertebrates constitute an artificial division of the animal kingdom, comprising 95 percent of animal species and about 30 different phyla.