Biodiversity of animals

Question 1

Animalia

Answer 1

eukaryotic, multi-cellular, and locomotive

Question 2

Asymmetrical

Answer 2

organisms that cannot be divided into identical halves

Question 3

Sessile

Answer 3

starfish, hydra

Question 4

radically symmetrical

Answer 4

many levels or lines of symmetry

Question 5

diploblastic

Answer 5

animals like jellyfish and the hydra that only have two tissue layers that develop from the embryo

Question 6

bilaterally symmetrical

Answer 6

animals that have only one level or line of symmetry that divides the body into identical halves

Question 7

cephalisation

Answer 7

the development of the head with a sense of organs in more advanced animals

Question 8

triploblastic

Answer 8

organisms with three tissue layers that develop from the embryo-like flatworms or humans

Question 9

sac-like

Answer 9

food moves in both directions and the tube cannot be specialized

Question 10

Annelida

Answer 10

earthworms, leeches

Question 11

Arthropoda

Answer 11

insects, spiders, and crustaceans

Question 12

Porifera

Answer 12

sponges

Question 13

Mollusca

Answer 13

snails, clams, and oysters