ch 9.2- diversity of life

Question 1

annelida examples

Answer 1

earthworm
leech

Question 2

annelida body symmetry

Answer 2

bilateral

Question 3

annelida tissue organization

Answer 3

tiploblasts

Question 4

annelida circulatory system

Answer 4

Closed circulatory system
(blood pumped through vessels by heart), multiple
pairs of aortic arches, distinct arteries and veins.

no HEART there is a dorsal vessel that acts as a heart

Question 5

annelida nevrous system

Answer 5

Ventral nerve cord, anterior
ganglia (brain).

Question 6

annelida respiratory system

Answer 6

none- diffusion

Question 7

annelida digestive system

Answer 7

Alimentary canal, mouth and
anus.

Question 8

annelida embryonic development

Answer 8

protostome

balstopore forms mouth

Question 9

annelida general characteristics

Answer 9

The first phyla to
develop segmentation. Segmented bodies, coelom
is divided by septa, sexual (hermaphrodites) and
asexual (regeneration) reproduction, longitudinal
and circular muscles.

Question 10

mollusca exmaples

Answer 10

clam, snail, slug, squid, octopus, cephalopod,
gastropod.

Question 11

mollusca body symmetry

Answer 11

bilateral

Question 12

mollusca tissue organization

Answer 12

triploblasts

Question 13

mollusca circulatory system

Answer 13

Open; contains hemocoel, a
space inside an organism where hemolymph
(similar to blood) freely flows around organs.

Question 14

mollusca nervous system

Answer 14

Ventral nerve cords and brain.

Question 15

molluscsa respiratory sytstem

Answer 15

gills

Question 16

mollusca digestive system

Answer 16

Complete (alimentary canal
and accessory glands), mouth and anus, radula
(tongues covered in tiny teeth - unique to
mollusks).

Question 17

mollusca embryonic devleopment

Answer 17

protostome

Question 18

arthropods body symmetry

Answer 18

bilateral

Question 19

arthropods tissue organization

Answer 19

triploblasts

Question 20

arthropods circulatory system

Answer 20

Open (hemocoel and
hemolymph).

Question 21

arthropods nervous system

Answer 21

Fused ganglia (masses of nerve
tissue), ventral nerve cord.

Question 22

arthropods digestive system

Answer 22

One-way digestion, some have
salivary glands.

Question 23

arthropods embryonic development

Answer 23

protostomes

Question 24

arthropods general charcateristics

Answer 24

Most diverse phylum,
has the highest number of different species,
exoskeleton of chitin, jointed appendages,
segmented bodies.

Question 25

what are the types of arthropods

Answer 25

insecta
arachnida
crustacea

Question 26

insecta arthropods examples

Answer 26

ant
grasshopper

Question 27

insecta arthropods respiratory system

Answer 27

Spiracles (small
openings on exoskeleton where air enters)
branch into tracheal tubes (site of gas
exchange).

Question 28

insecta arthropods general charcateristics

Answer 28

Three pairs of legs,
more species than any other phylum
combined, metamorphosis (distinct stages,
altered appearance as insect matures).

Question 29

Arthropoda (Arachnida): examples

Answer 29

spider
scorpion

Question 30

Arthropoda (Arachnida): respiratory system

Answer 30

Trachea or book lungs
(sheets of vascularized tissue that increase
surface area).

Question 31

Arthropoda (Arachnida): general characteristics

Answer 31

Four pairs of legs,
terrestrial habitats.

Question 32

Arthropoda (Crustacea): examples

Answer 32

crayfish
lobster
crab

Question 33

Arthropoda (Crustacea): respiratory system

Answer 33

some have gills

Question 34

Arthropoda (Crustacea): general characteristics

Answer 34

Aquatic and
terrestrial habitats.

Question 35

echinodermata exmaples

Answer 35

starfish, sea urchin, sea cucumber.

Question 36

echinodermata body symmetry

Answer 36

Bilateral (larvae), five fold radial
(adult).

Question 37

echinodermata tissue organization

Answer 37

triploblasts

Question 38

echinodermata circulatory system

Answer 38

open
no heart

Question 39

echinodermata nervous system

Answer 39

nerve ring and radial nerves

Question 40

echinodermata respiratory system

Answer 40

none- diffusion

Question 41

echinodermata digestive system

Answer 41

complete- mouth and anus

Question 42

echinodermata embryonic development

Answer 42

deuterostome

blastopore forms anus

Question 43

echinodermata general charcateristics

Answer 43

Tube feet (suction cups
for walking and obtaining food), sexual or asexual
reproduction, closest related major phyla to
chordates. Only found in marine habitats.