Chapter 19

Question 1

Protostomes have this type of cleavage

Answer 1

spiral

Question 2

Deuterostomes have this type of cleavage

Answer 2

radial

Question 3

In protostomes, the blastopore becomes this….

Answer 3

mouth

Question 4

In deuterostomes, the blastopore becomes this…

Answer 4

anus

Question 5

This type of cleavage involves cytokinesis diagonal from vertical axis of embryo

Answer 5

spiral

Question 6

This type of cleavage involves cytokinesis along vertical axis of embryo

Answer 6

radial

Question 7

Type of cleavage where fate of each cell is determined early in development

Answer 7

determinate

Question 8

Type of cleavage where fate of each cell is determined later in development and allows for identical twins

Answer 8

indeterminate

Question 9

In protostomes, this forms from splitting of solid masses of mesoderm

Answer 9

schizocoelom

Question 10

In deuterostomes, this forms as mesoderm cells bud of the archenteron

Answer 10

enterocoelom

Question 11

What classes are included in Phylum Annelida? (H-O-P)

Answer 11

Hirudinea, Oligochaeta, Polychaeta

Question 12

What classes are included in Phylum Mollusca? (BiGasCaP)

Answer 12

Bivalvia, Gastropoda, Cephalopoda, Polyplacophora

Question 13

What classes are included in the Phylum Echinodermata? (A-H-O-E)

Answer 13

Asteroidea, Holothuroidea, Ophiuroidea, Echinoidea

Question 14

What subphylums are included in the Phylum Arthopoda? C-C-U

Answer 14

Chelicerata, Crustacea, Uniramia

Question 15

Key class in the subphylum Chelicerata

Answer 15

Arachnida

Question 16

Key class in the subphylum Crustacea

Answer 16

Malacostraca

Question 17

Key class in the subphylum Uniramia

Answer 17

Insecta

Question 18

Serial repetition of body segments in Annelids

Answer 18

metamerism

Question 19

These excrete waste in Annelids and Molluscs

Answer 19

metanephridia

Question 20

How do Annelids do gas exchange?

Answer 20

across the body wall

Question 21

Polychaetes are in what class?

Answer 21

Polychaeta

Question 22

Earthworms are in what class?

Answer 22

Oligochaeta

Question 23

Leeches are in what class?

Answer 23

Hirudinea

Question 24

Clams, scallops, mussels are in what class?

Answer 24

Bivalvia

Question 25

Snails and slugs are in what class?

Answer 25

Gastropoda

Question 26

Chitons are in what class?

Answer 26

Polyplacophora

Question 27

Octopi and squid are in what class?

Answer 27

Cephalopoda

Question 28

Spiders, scorpions, and ticks are in what subphylum?

Answer 28

Chelicerata

Question 29

Crayfish, crabs, lobsters are in what subphylum?

Answer 29

Crustacea

Question 30

Beetles, buts, grasshoppers are in what subphylum?

Answer 30

Uniramia

Question 31

Molluscs have what four distinct body parts?

Answer 31

head, foot, mantle/shell, visceral mass

Question 32

Molluscs use these for gas exchange

Answer 32

gills

Question 33

Mollusc larvae that are free swimming

Answer 33

trochophore

Question 34

Arthropods have these fused body segments

Answer 34

tagmata

Question 35

Arthropods have an exoskeleton made of this

Answer 35

chitin

Question 36

Arthropods use these to excrete waste

Answer 36

Malpighian tubules

Question 37

In Arthropods, the coelom is reduced to this

Answer 37

hemocoel

Question 38

Spiders and ticks are in this class

Answer 38

Arachnida

Question 39

Crabs and shrimp are in this class

Answer 39

Malacostraca

Question 40

Insects are in this class

Answer 40

Insecta

Question 41

Gradual metamorphosis has these three life cycle stages

Answer 41

egg, nymph, adult

Question 42

Complete metamorphosis has these four life cycle stages

Answer 42

egg, larva, pupa, adult

Question 43

Echinoderms have this type of vascular system

Answer 43

water

Question 44

Echinoderms have this type of nervous system

Answer 44

nerve net

Question 45

Echinoderms have a dermal exoskeleton made of these

Answer 45

ossicles

Question 46

Sea stars are in this class

Answer 46

Asteroidea

Question 47

Sea urchins are in this class

Answer 47

Echinoidea

Question 48

Sea cucumbers are in this class

Answer 48

Holothuroidea

Question 49

Brittle stars are in this class

Answer 49

Ophiuroidea