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biology 101 > Animal Diversity (Exam 4) > Flashcards

Animal Diversity (Exam 4) Flashcards

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1
Q

which phylum of animals has a dorsal- hollow nerve cord?

A

chordata

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2
Q

to which phylum do sponges belong?

A

porifera

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3
Q

stinging tentacles are a significant feature of which Phylum of animals?

A

cnidaria

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4
Q

how does a Cartilaginous fish differ from a Jawless fish? How are they similar

A
  • Cartilaginous fish (sharks) have articulating jaws
  • jawless fish have teeth but cannot chew or clamp down and can only attach to host.
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5
Q

type of skeleton: human

A

endoskeleton

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6
Q

type of skeleton: turtle

A

endoskeleton

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7
Q

type of skeleton: jellyfish

A

hydrostatic

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8
Q

type of skeleton: crab

A

exoskeleton

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9
Q

digestive system: insect

A

complete

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10
Q

digestive system: human

A

complete

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11
Q

digestive system: earthworm

A

complete

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12
Q

endoskeletons

A

are internal and are made up of bones and/ or catilage. animals with endoskeletons have softer tissues covering the outside of their bodies. EX: humans, fish, birds, and reptiles

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13
Q

exoskeletons

A

are external and cover all exposed surfaces of the animal. there is no soft tissue covering the outside of their bodies. EX: crabs, insects

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14
Q

hydrostatic skeleton

A

are areas of confined fluids under pressure within an animals body. No solid/ rigid framework. EX: worms, jellyfish

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15
Q

pros and cons of endoskeletons

A
  1. some protection to internal organs
  2. good range of motion, stead size growth
  3. internal framework allows for larger size (biggest animals)
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16
Q

pros and cons of exoskeletons

A
  1. most protection to internal organs
  2. limit range of motion
  3. growth= shedding
  4. rapid size increase
  5. most vulnerable during shedding
  6. limitation in great size
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17
Q

complete digestive tract

A

has 2 openings, mouth and anus

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18
Q

incomplete digestive tract

A

only 1 opening to the outside, food enters through it and waste goes out through it.

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19
Q

symmetry

A

3 types: asymmetrical, radial, and bilateral.

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20
Q

bilateral symmetry

A

paired body parts on either side of the median plane. EX: humans

21
Q

asymmetrical

A

an organism that lacks symmetry. EX: some sponges

22
Q

segmentation

A

the repetition of body parts along the longitudinal axis of the body. EX: earthworm

23
Q

Porifera

A

EX: SPONGES
1. asymmetrical
2. intercellular
3. endoskeleton
4. unsegmented

24
Q

Cnidaria

A

EX: JELLYFISH
1.stinging tentacles
2. radial symmetry
3. incomplete
4. hydrostatic

25
Q

Platyhelminthes (flatworms)

A

EX: FLATWORMS, LIVERFLUKE. THINK PINK RIBBON
1. bilaterally symmetrical
2. incomplete digestive system
3. unsegmented

26
Q

Nematoda or Aschelminthes (unsegmented)

A

EX: ASCARIA
1. unsegmented
2. complete
3. bilateral
4. hydrostatic

27
Q

Annelida (segmented worms)

A

EX: EARTHWORMS
1. bilateral
2. hydrostatic
3. complete digestive
4. segmented

28
Q

consists of fluids under pressure

A

hydrostatic

29
Q

offers the least protection to internal organs

A

hydrostatic

30
Q

consists of bone and/ or cartilage

A

endoskeletal

31
Q

must be shed in order for the animal to grow

A

exoskeletal

32
Q

the largest animals in the world have this skeletal system

A

endoskeletal

33
Q

which phylum consists of animals with exoskeletons and jointed appendages

A

arthropoda

34
Q

which phylum of animlas has specialized stinging tentacles

A

cnidaria

35
Q

Coral is related to

A

jellyfish (both cnidarians)

36
Q

horseshoe crab is related to

A

crayfish

37
Q

a leech is in the same Phylum as

A

an earthworm

38
Q

Mollusca

A

EX: CLAMS, SNAILS
1. exoskeleton
2. unsegmented
3. complete
4. bilateral

39
Q

Arthopoda

A

EX: LOBSTER, CRAB
1. segmented
2. complete
3. bilateral
4. exoskeleton

40
Q

Chordata

A

EX: HUMANS
1. endoskeleton
2. segmented
3. complete
4. bilateral

41
Q

Echinoderms

A

EX: SEASTARS
1. radial, bilateral, asymmetrical
2. unsegmented
3. complete
4. endoskeleton

42
Q

Name the 7 Chordata classes

A
  1. Jawless Fish
  2. Cartilage Fishes
  3. Bony Fish
  4. Amphibians
  5. Reptiles
  6. Birds
  7. Mammals
43
Q

Jawless Fish (Class Petromyzontida)

A

“Rasping” mouthparts. EX: LAMPREY

44
Q

Cartilage fish (Class Chondrichthyes)

A

Cartilage skeletons; most marine (salt water). EX: SHARKS, RAYS

45
Q

Amphibians (Class Amphibia)

A

Most have gills in the early stages of life cycle and develop lungs for life on land. EX: FROGS, SALAMANDERS

46
Q

Reptiles (Class Reptilia)

A

Most are well- adapted for land. Amniote egg and scales prevent water loss. First true land animals EX: SNAKE, ALLIGATOR

47
Q

Birds (Class Aves)

A

Feathers and adaptations to make light weight for flight. Some flightless and limited- flight birds have other adaptations. Four chambered heart

48
Q

Mammals (Class Mammalia)

A

Skin, hair, warm- blooded, mammary glands to nurse young. Usually intelligent. EX: HUMANS, FOX, WOODCHUCK

49
Q

Bony Fish (Class Pisces)

A

Fish with true bone perch tissue with endoskeletons. EX: TUNA, PICKEREL, BASS

biology 101 (8 decks)

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