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Biology 202- Organism Biology > Chapter 32 > Flashcards

Chapter 32 Flashcards

1
Q

multicellular hetertrophic aquatic or terrestrial eukaryotes

A

animals

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2
Q

animals have ___________________ wall

A

no cell

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3
Q

animals feed by _________________

A

ingestion

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4
Q

________________ is when food is consumed broken down internally using digestive enzymes

A

ingestion

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5
Q

animals live in _____________________

A

all possible habitats

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6
Q

animals reproduce ______________

A

sexually

-multicellular animare are diploid

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7
Q

______________________ represent the only haploid stage in animal life cycle

A

unicellular gametes

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8
Q

gametes are produce by ___________ in the _________________________

A

meiosis

diploid gonads

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9
Q

____________ undergo ____________ to produce the zygote

A

fertilization

diploid zygote

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10
Q

the zygote undergoes ___________________: the mitosis of unicellular zygote forms a hollow ball of cells

A

cleavage

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11
Q

the hollow ball formed by cleavage is the ________________

A

blastula

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12
Q

the hollow center of the blastula is the ________________

A

blastocoel

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13
Q

the blastula undergoes _________________ on end of the blastula folds inward into the blastocoel

A

gastrulation

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14
Q

gastrulation leads to

A

-an outer layer of cells ectoderm
an inner layer of cells endoderm
a space between the two layers blastocoel
an external opening blastopore into the embryonic gut archenteron

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15
Q

the embryonic structure is called the _______________

A

gastrula

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16
Q

the gastrula undergoes further development including __________________________________________ to form the juvenile animal

A

mesoderm formation and organgenesis

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17
Q

the large ultimately undergoes ___________________ forming the adult animal

A

metamorphiasas

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18
Q

_________ posses no true tissues

A

sponges porifera

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19
Q

sponges are simply _____________________

A

an aggregation of cells

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20
Q

cnidarians posses __________________

A

two tissue layers

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21
Q

possessing two tissue layers ectoderm and endoderm

A

diploblastic

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22
Q

all other animals possess _____________________________

A

three tissue layers

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23
Q

posting three tissue layers mesoderm ectoderm endoderm

A

triploblastic

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24
Q

_____________________ do not posses body symmetry and are assymentrical

A

sponges

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25
Q

do not posses body symmetry and are______________

A

assymentrical

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26
Q

cnidarians possess ____________

A

radial symmetry

27
Q

any plan passing through the center of the body will result in two symmetrical halves

A

radial symmetry

28
Q

all other animals possess _________________ symmetry

29
Q

only one plan passing through the center of the body will result in two symmetrical halfs

A

bilateral symmetry

30
Q

_____________________ are internal fluid filled spaces possess by triploblastic bilateral animals

A

body cavities

31
Q

__________________________ are used for nutrient and waste circulation, cushioning of organs and as a hydrostatic skeleton

A

body cavities

32
Q

__________________ do not possess a body cavity

33
Q

termed to not possess a body cavities

34
Q

_________________________ possess a body cavity called a psedocolem

A

rotifers and nematodes

35
Q

__________________ is a body cavity located between the mesoderm and endoderm

A

psedocolem

36
Q

all other animals posses a body cavity called a _______________

A

true coelom

37
Q

a true coelom is a body cavity located located within the

38
Q

the condition when a true coelom is a body cavity located located within the mesoderm

A

eucocelomate

39
Q

______________________________ animals are further differentiated based on their pattern of embryonic development

A

triploblastic bilateral animals

40
Q

flatworms rotifers mollusks annelids and nematodes and arthropods are termed protostomes

A

protostomes

41
Q

echinoderms and chordates are termed

A

deterostomes

42
Q

In _______________ the bastospore forms the mouth and anus forms secondarily

A

protostomes

43
Q

In _______________ the bastospore forms the anus and mouth forms secondarily

A

deterostomes

44
Q

________ spiral and radical

45
Q

a helical arrangement of dividing cells

A

spiral cleavage

46
Q

protostomes undergo

A

spiral cleavage

47
Q

deterostomes undergo

A

radical cleavage

48
Q

a stacked arrangement of dividing cells

A

radical cleavage

49
Q

deterostomes undergo

A

indeterminate cleavage

50
Q

protostomes

A

determinate cleavage

51
Q

all early cells have a specific fate. The removal of one cell early in development will result in the death of the embryo mosaic embryos

A

determinate cleavage

52
Q

early cells have capacity to become any cell type. The removal of one cell early in development will yield two functional embryos

A

indeterminate cleavage

53
Q

protostomes are

A

schizocoelus

54
Q

deuterostomes are

A

enterocoelors

55
Q

the coelom forms for solid masses of mesoderm cells that split apart

A

protostomes

56
Q

the column forms from an out pocketing of the endoderm and guts

A

enterocoelors

57
Q

protostomes can be further classified as

A

lophophorezoans or ecdysozoans

58
Q

a particular type of filter feeding appendage

A

lophophore

59
Q

a particular type of ciliated marvel stage

A

trochophore

60
Q

______________ nematodes and arthropods undergo ecdysis

A

ecdysozoans

61
Q

lophophorezoans are either

A

lophophore and trochophore

62
Q

molting of an external non living cuticle in order to grow

63
Q

the sponge and cnidarian body plans evolved prior to the

A

cambrian explosion precambrian

64
Q

all of the other animal body (lophotrochozoans, ecdyzoans, and deuterostomes) plans evolved during the

A

cambrian explosion 542 mya

Biology 202- Organism Biology (30 decks)

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