Zoology Unit 6 Flashcards

1
Q

What is the endoskeleton of an echinoderm made of?

A

ossicles, calcium carbonate

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2
Q

coverings of cartilaginous fish vs bony fish

A

cartilaginous fish have denticles, bony have scales

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3
Q

Osmoregulation vs thermoregulation

A

osmoregulation is balancing water and salt. thermoregulation is balancing body heat

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4
Q

What are the three fish groups?

A

jawless, cartilaginous, bony

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5
Q

Types of jawless fish

A

lamprey

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6
Q

Types of cartilaginous fish

A

sharks, rays

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7
Q

Types of bony fish

A

carp, eels, salmon

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8
Q

What are the functions of fish fins

A

movement, balance

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9
Q

How do sea stars eat?

A

evert stomach, digestive fluids

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10
Q

fish evolution

A
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11
Q

symmetry of echinoderm larvae and adult echinoderms

A

larvae have bilateral, adult have pentaradial

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12
Q

What is the purpose of the lateral line in fishes

A

sensing position in the environment, spatial awareness

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13
Q

Freshwater vs saltwater: drinking water

A

freshwater fish don’t drink, saltwater fish drink

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14
Q

Freshwater vs saltwater: interact with salt

A

saltwater excrete salt and have lower inner salinity. freshwater take up salt and have higher inner salinity

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15
Q

freshwater vs saltwater: concentration of nitrogen waste

A

saltwater is concentrated to get rid of salt. freshwater isn’t concentrated to keep salt

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16
Q

where are echinoderms found?

A

aquatic/marine

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17
Q

four characteristics shared by chordates

A

notochord, dorsal nerve chord, pharyngeal pouches, post anal tail, endostyle

18
Q

senses of bony fishes

A

ears for hearing and motion, eyes for vision

19
Q

major echinoderm groups

A

crinoidea, ophiuroidea, holothuroidea, asteroidea, echinoidea

20
Q

crinoidea characteristics

A

calyx, stalked crinoid

21
Q

ophiuroidea characteristics

A

slender arms

22
Q

holothuroidea characteristics

A

Cuvierian tubules

23
Q

asteroidea characteristics

24
Q

echinoidea characteristics

A

noticeable spikes, round

25
what can be inferred from the body shape of a fish
environment
26
how many chambers do fish hearts have
4
27
etymology for deuterostome
second mouth
28
etymology for echinodermata
spiny skin
29
etymology for chordata
chord
30
endothermy vs exothermy
endothermy: maintain body temp exothermy: body temp depends on environment
31
functions of echinoderm water vascular system
movement, food and waste transportation, respiration
32
protostome vs deuterostomes
protostomes: mouth forms first, coelom starts lower deuterostomes: anus forms first, coelom starts higher
33
three chordate subphyla
vertebrata, urochordata, cephalochordata
34
vertebrata echinoderms
sea urchins, sea cucumbers, sand dollars
35
urochordata echinoderms
tunicate
36
cephalochordata echinoderms
lancelet
37
asteroidea organism
sea stars
38
holothuroidea organism
sea cucumber
39
echinoidea organism
sea urching, sand dollar
40
ophiuroidea organism
brittle stars
41
crinoidea organism
sea lilies