invertebrates

Question 1

Vertebrates

Answer 1

an animal that has a backbone

Question 2

Invertebrates

Answer 2

an animal that has no backbone

Question 3

Consumer

Answer 3

an organism that eats meat 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

open circulatory system

Answer 7

a circulatory system in which the circulatory fluid is not entirely contained

Question 8

closed circulatory system

Answer 8

a circulatory system in which the heart circulates through a network of blood vessels that form a closed loop

Question 9

compound eye

Answer 9

an eye composed of many light detectors

Question 10

exoskeleton

Answer 10

a hard external supporting structure

Question 11

antenna

Answer 11

a feeler that is on the head of an invertebrate such as a crustacean

Question 12

endoskeleton

Answer 12

an internal skeleton made of bone of cartilage

Question 13

water vascular system

Answer 13

a system of canals filled with a watery fluid that circulates throughout the body of an echinoderm

Question 14

coelom

Answer 14

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

Question 15

. Bilateral Symmetry

Answer 15

: symmetry in which similar anatomical parts are arranged on opposite sides of a median axis so that only one plane can divide the individual into essentially identical halves

Question 16

Radial Symmetry

Answer 16

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

Question 17

Asymmetry

Answer 17

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

Question 18

Sponges

Answer 18

Sponges, the members of the phylum Porifera, are a basal animal clade as a sister of the Diploblasts. They are multicellular organisms that have bodies full of pores and channels allowing water to circulate through them, consisting of jelly-like mesohyl sandwiched between two thin layers of cells.

Question 19

Cnidarians

Answer 19

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

Question 20

flatworms

Answer 20

The flatworms, flat worms, Platyhelminthes, or platyhelminthes are a phylum of relatively simple bilaterian, unsegmented, soft-bodied invertebrates.

Question 21

Roundworms

Answer 21

The nematodes or roundworms constitute the phylum Nematoda, with plant-parasitic nematodes also known as eelworms. They are a diverse animal phylum inhabiting a broad range of environments.

Question 22

Mollusks

Answer 22

mollusca is the second-largest phylum of invertebrate animals after the Arthropoda. The members are known as molluscs or mollusks. Around 85,000 extant species of molluscs are recognized.

Question 23

Metamorphosis

Answer 23

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