Animals

Question 1

Porifera

Answer 1

Sponges, Has no tissue, larvae are motile

Question 2

Cnidarians

Answer 2

Tentacles with stinging cells to trap prey, sac-like digestive system

Question 3

Flatworms

Answer 3

flat, soft-bodied , aquatic and moist environments, 1 digestive canal

Question 4

Rotifera

Answer 4

Microscopic, has true tissues, aquatic, has a head and corona

Question 5

Round Worms

Answer 5

lives in soil, round, has nerve ends, moves with muscles

Question 6

Mollusca

Answer 6

Soft-bodied with tentacles has gills and a thin mantel, lives in moist environments

Question 7

Annelida

Answer 7

soft segmented bodies , has circulatory system , small brains

Question 8

Arthropoda

Answer 8

insects and spiders . has head , thorax and abdomen , exoskeletons made of chitins

Question 9

Echinodermata

Answer 9

marine, spiny endoskeleton, digestive tract , lacks brain , water vascular system

Question 10

Chordata

Answer 10

Has Vertebrate , head and CNS, circulatory system, some have tails and gill pouches in embryonic development
Notochord- forms the vertebrates , spine

Question 11

Protostomes

Answer 11

has spiral cleavage, blastopore forms mouth, mesoderm is detached from endo and ectoderm , if one cell fails the rest of the organism dies (cells are predesigned for their role)

Question 12

Deuterostomes

Answer 12

Has Radial Cleavage, Blastopore forms anus , mesoderm is integrated in the endoderm . if one cells fails the others can take its place. cells have the genetic code for everything

Question 13

HOX Gene

Answer 13

determines the time and pace of development. complex organisms have more than one hox gene. determines symmetry, number of limbs and placements