Exam 1

Question 1

Colonial is…

Answer 1

each cell does everything

Question 2

Ex of Porifera

Answer 2

sponges

Question 3

Ex of Cnidaria

Answer 3

jellyfish, corals, and anemones

Question 4

Ex of platyhelminthes

Answer 4

flatworms

Question 5

Ex of Nematoda

Answer 5

heartworm

Question 6

Ex of Mollusca

Answer 6

clams, snails, gastropods, and cephalopods

Question 7

Ex of Annelida

Answer 7

segmented worms

Question 8

Ex of Arthropoda

Answer 8

spiders and butterflies

Question 9

Ex of Echinodermata

Answer 9

starfish, urchins, and sea cucumbers

Question 10

Ex of Chordata

Answer 10

human, dogs, frogs

Question 11

Regeneration

Answer 11

if you cut them in half they will grow back

Question 12

Budding

Answer 12

form a small version of itself that will split off

Question 13

Parthenogenesis

Answer 13

no fertilization, does not need a male

Question 14

Sexual reproduction

Answer 14

fertilization either internal or external

Question 15

What are the 4 types of tissues found in animals

Answer 15

epithelial, connective, muscle, and nervous

Question 16

Roles of Connective

Answer 16

Bind and support

Question 17

Roles of epithelial

Answer 17

protective layer

Question 18

Roles of Muscle

Answer 18

Movement

Question 19

Roles of nervous

Answer 19

transmit stimuli and responses

Question 20

How does negative feedback loops maintain homeostasis

Answer 20

they take in signals, send them to the integrator which determines what is needed to correct the situation, the integrator sends signals to the effector which releases what is needed to correct

Question 21

Endotherms strategies of thermoregulation

Answer 21

“warm blooded” generate body heat metabolically, make their own heat

Question 22

Ecdotherms strategies of thermoregulation

Answer 22

generally don’t generate much heat, rely of behavior to regulate temp

Question 23

Heterotherms strategies of thermoregulation

Answer 23

switch between endothermic and exothermic, some go through hibernation.

Question 24

All animals are

Answer 24

eukaryotic, multicellular, have plasma membrane, heterotrophic, store glycogen, have collagen and gastrulation

Question 25

Which group represents a clade? Monophyletic, paraphyletic, or polyphyletic

Answer 25

monophyletic

Question 26

what is the main limitation on cell size? Bulk flow, diffusion, cell membrane strength, or mass.

Answer 26

diffusion

Question 27

which of the following characteristics separates animals from other organisms? heterotrophy, cell walls, sexual reproduction, collagen.

Answer 27

heterotrophic

Question 28

which trait would be least useful for constructing a phylogenetic tree? Presence of nucleus, # of embryonic tissue layers, pattern of embryonic development, body symmetry.

Answer 28

the presence of a nucleus

Question 29

if you were trying to decide whether an animal is protostome or a deuterostome, what's useful? A coelom, its blastopore is its mouth, bilateral symmetry

Answer 29

its blastopore becomes its mouth

Question 30

which of these is an example of negative biological feedback? the arrival of more and more platelets to a wound or an increase in blood sugar after eating something causing insulin secretion

Answer 30

eating something that causes insulin secretion

Question 31

which is a temp regulation mechanism by endotherms? shivering, moving to be in the sun, moving to be out of the sun

Answer 31

shivering

Question 32

Homologous characteristics...

Answer 32

share a common descent

Question 33

Analogous characteristics...

Answer 33

result from convergent evolution

Question 34

Monophyletic Group

Answer 34

includes a common ancestor and all its descendants

Question 35

paraphyletic group

Answer 35

includes common ancestor but not all its descendants

Question 36

polyphyletic group

Answer 36

does not include the common ancestor

Question 37

Fossils can add

Answer 37

anatomical features of extinct species, molecular data, & a timeline

Question 38

cephalization means

Answer 38

having a head

Question 39

Acoelomate means

Answer 39

has NO body cavity

Question 40

pseudocoelomate

Answer 40

body cavity is not completely covered by mesoderm

Question 41

coelomate

Answer 41

body cavity is covered by mesoderm

Question 42

gastrulation

Answer 42

balls of cells formed by cleavage invaginates to form gut and embryonic tissue layers

Question 43

gastrovascular cavities

Answer 43

single opening serving as mouth and anus

Question 44

lophotrochozoa

Answer 44

grow by enlarging their bodies. have either lophophore feeding structures or trochophore larvae

Question 45

ecdysozoa

Answer 45

grow by molting, has protective layer, has to shed and then grow more

Question 46

Loose connective tissue

Answer 46

hold organs in place. Ex fat

Question 47

dense connective tissue

Answer 47

made of stronger fibers. ex tenants and ligaments

Question 48

supportive connective tissue ex.

Answer 48

bone and cartilage

Question 49

fluid connective tissue ex

Answer 49

blood