Exam 3 animal diversity and development

Question 1

animals are

Answer 1

multicellular, eukaryotic, ingestive
heterotrophs

Question 2

four types of eukaryotes

Answer 2

animals, plants, MULTICELLULAR
fungi, and protists UNICELLULAR

Question 3

cell wall of fungi

Answer 3

Glycoproteins and polysaccharides

Question 4

cell wall of bacteria

Answer 4

Peptidoglycan

Question 5

What structure surrounds the animal cell
plasma membrane?

Answer 5

collagen

Question 6

Oldest animal fossils

Answer 6

from Ediacaran era
560 mya
soft-bodied, radial symmetry
* Include molluscs, sponges, cnidarians

Question 7

cambrain explosion

Answer 7

540 mya
all animal life

Question 8

Animals move onto land

Answer 8

450 mya

Question 9

Different groups of animals colonized at different times

Answer 9

Arthropods were the first to colonize land, 450 mya
– fossil millipedes, centipedes, spiders

•Vertebrates colonized around 365 mya

Question 10

Phylum porifera

Answer 10

Sponges
Have no symmetry, no tissues

Question 11

Phylum Cnideria

Answer 11

Jellyfish and anemones
Radial symmetry

Question 12

Endoderm

Answer 12

Inner layer

Question 13

Diploblastic

Answer 13

Only ectoderm and endoderm

Question 14

Which describes a digestive tract with a separate mouth and anus?

Answer 14

Dueterostomes