animal diversity Flashcards

1
Q

a pseudocoelome is found in which phylum

A

nematoda

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2
Q

which phylum have only one opening to the digestive tract ( no anus)

A

cnidaria and platyhelminthes

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3
Q

are roundworms or earthworms members of phylum platyhelminthes

A

no, but flukes and tapeworms are

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4
Q

in which phylum do we see muscles and nerves in their simplest forms

A

cnidaria - jellyfish

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5
Q

what are two characteristics of vertebrates

A

pharyngeal (gill) slits
dorsal hollow nerve cord

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6
Q

which vertebrate does not posses an amniotic egg

A

fish
amphibians

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7
Q

what is the only taxonomic category that exists in nature

A

species

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8
Q

how do animals that live in water dispose of nitrogenous wastesv

A

ammonia (NH3) is released across the body surface or gills

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9
Q

how do animals that do not live in water dispose of nitrogenous waste

A

converting to urea

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10
Q

how do reptiles and bords dispose of nitrogenous waste

A

uric acid

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11
Q

what are the three domains of life

A

bacteria
archaea
eurkarya

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12
Q

what is bilateral symmetry

A

two lined symmetry ( complex)

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13
Q

what is radial symmetry

A

symmetry around a central point - 1 line (simple)

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14
Q

what three germ layers give rise to the tissues and organs of the animal embryo

A

mesoderm
ectoderm
endoderm

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15
Q

what is a protist

A

single celled (unicellular) eukaryotic organisms that arent plants, animals or fungi
protozoans, algae and fungus are like protist

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16
Q

how do amoebas move

A

pseudopodia (false feet)

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17
Q

how do paramecium move

A

cilia (hair looking)

18
Q

what are the phylums of the animal kingdom

A
  1. Phylum Porifera (sponges)
  2. Phylum Cnidaria (sea anemones, jellyfish, coral, hydra)
  3. Phylum Platyhelminthes (flatworms)
  4. Phylum Nematoda (roundworms)
  5. Phylum Annelida (segmented worms, earthworms, leeches)
  6. Phylum Mollusca (clam, squid, snails, slugs)
  7. Phylum Arthropoda (crustaceans, insects, spiders)
  8. Phylum Echinodermata (starfish)
  9. Phylum Chordata (includes all vertebrates)
19
Q

where do members of phylum platyhelminthes live

A

marine, freshwater and damp terrestrial

20
Q

what way are members of phylum platyhelminthes flattened

A

dorsoventrally

21
Q

what cavity have members of phylum platyhelminthes

A

gastrovascular

22
Q

what are the three classes of phylum platyhelminthes

A

tuberellia - free living planarias
cestoda - parasitic tape worms
trematoda - parasitic flukes (liver fluke)

23
Q

what is a pseudocoelom

A

body cavity derived from the blastocoel rather then from mesoderm

24
Q

what are the characteristics of phylum nematoda (roundworms)

A

found in aquatic habitats, in the soil, in moist plant tissue or in body fluids/tissues of animals

25
Q

what are the characteristics of phylum annelida

A

examples are earthworms, marine worms and leeches
segmented

26
Q

what are the characteristics of phylum mollusca

A

examples are snails or oysters
soft bodied with a hard shell
they have 3 main parts
1. muscular foot
2. visceral mass
3. mantle

27
Q

what is the largest phylum in the animal kingdom

A

arthropods (>2 mill)
spiders, centipede, lobster, insects

28
Q

what are the 3 basic characteristics of arthropods

A

jointed appendages
segmented body
external skeleton (chitin)

29
Q

what are the characteristics of phylum echinodermata

A

examples are starfish
spiny skin
tube feet (suction cup)
pentaradial symmetry (5 arms)

30
Q

what are members of phylum chordata

A

fish
amphibia
reptilia
aves
mammalia

31
Q

what is a notochord

A

primitive skeletal support

32
Q

what chordates have no jaws

A

lampreys

33
Q

what is a coelacanth

A

missing link between fish and amphibia

34
Q

what are the four classifications of protist

A

excavata
SAR
archeaplastida
unikonta

35
Q

what is excavata

A

asymmetrical, single-celled organisms with a feeding groove from one side
divided into 3 groups
1. diplomonads
2. parabasalids
3. euglenozoans

36
Q

what is an alveolates

A

have membrane enclosed sacs (alveoli) just under the plasma membrane
member of SAR group
divided into 3 sub groups
1. dinoflagellates
2. apicomplexans (parasites)
3. ciliates (move using cilia)

37
Q

______ are so called because of air filled sacs under the cell membrane

A

alveolates

38
Q

apicomplexans are ______ of animals, and some cause serious human ______

A

parasites
diseases

39
Q

plasmodium requires both ______ and _______ to complete its life cycle

A

mosquitoes and humans

40
Q

paramecium is an example of a _____

A

ciliate