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Chem 1127 > Practical > Flashcards

Practical Flashcards

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1
Q

Which of these insect orders has one pair of the wing modified into balancing organs

A

diptera

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2
Q

which of these animal phyla contain many species with complex, parasitic life cycles involving multiple hosts

A

trematoda

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3
Q

which of these animal phyla undergoes ecdysis

A

centipede

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4
Q

which of these animals has endoskeleton as a distinguishing characteristic

A

starfish

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5
Q

which of these animal phyla has a mantle as a distinguishing characteristic

A

snail

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6
Q

which of these animal phyla can move by contracting a hydrostatic skeleton differently across many body segments

A

worm

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7
Q

the most diverse group of arthropods

A

insects

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8
Q

trematoda belongs to

A

platyhelminthes

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9
Q

hydrozoa belongs to

A

cnidaria

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10
Q

cephalopoda belongs to

A

mollusca

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11
Q

arachnida belongs to

A

arthropoda

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12
Q

the sequence that bilateral symmetry arose

A

multicellularity-> multiple tissues -> bilateral symmetry

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13
Q

echinoderms are ___ symmetric as larvae

A

bilaterally

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14
Q

echinoderms are ____ symmetric as adults

A

pentaradially

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15
Q

cnidarians share a common body plan that takes two forms. The free-floating form called a medusa, whereas the sessile form is called…

A

polyp

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16
Q

both rotifers and ______ develop a body ____ in which the internal _____ reside in called ______

A

nematodes; cavity; organs; pseudocoelem

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17
Q

seeds can have adaptation to aid dispersal

A

true

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18
Q

the stigma is part of the carpel

A

true

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19
Q

styles are a male flower part

A

false

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20
Q

gymnosperms are flagellated

A

false

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21
Q

gymnosperms reproduce using sori

A

false

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22
Q

one of the synapomorphies of angiosperms is wood

A

false

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23
Q

a gymnosperm reproduces using flowers

A

false

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24
Q

an angiosperm reproduces using flower

A

true

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25
Q

anthers are the male flower part

A

true

26
Q

filaments are a male flower part

A

true

27
Q

cells with one set of chromosomes are ____ as seen in ____ produced by gametophytes. But a sporophyte is ______ because it contains ___ sets of chromosomes

A

haploids, gametes, diploid, two

28
Q

(smoother looking cone structure) This structure is a ___ cone which bears _____ each of which develops into a _____, commonly called ____

A

male, microspores, microgametophyte, pollen

29
Q

(spikier looking cone structure) This structure is a ____ cone which bears _____ each of each develops a ______, which ultimately produces the _____

A

female cone, megaspores, megagametophyte, egg

30
Q

All mammals have mammary glands

A

true

31
Q

amphibians are the first chordates with an amniotic egg layer

A

false

32
Q

an amnion layer is a synapomorphy of birds

A

false

33
Q

feathers are a synapomorphy of bird

A

true

34
Q

fish only have one type of scale

A

false

35
Q

hagfish are known for their unique defense behavior which is to throw spikey scales into the mouths of their predators

A

false

36
Q

hinged jaws is a synapomorphy of hagfish

A

false

37
Q

lancelets have a notochord

A

true

38
Q

live birth is a synapomorphy of amphibians

A

false

39
Q

muscular post-anal tail is a synapomorphy of osteichthyes

A

false

40
Q

paired appendages is a synapomorphy of tetrapod

A

false

41
Q

paired appendages is a synapomorphy of lancelets

A

false

42
Q

reptiles include the snakes, lizards, crocodiles, turtles, and birds

A

true

43
Q

Stiff hair is a synapomorphy of reptiles

A

false

44
Q

a bony cranium is a synapomorphy of chordata

A

false

45
Q

4 main chordate synapomorphies

A

pharyngeal gill slits, notochord, post-anal tail, hollow dorsal nerve cord

46
Q

a key character present in reptiles but absent in amphibians is an

A

amnion

47
Q

homo sapiens belong to which group of mammals

A

eutheria

48
Q

which chordate groups are endothermic

A

aves and mammalia

49
Q

to which taxonomic category does chordata belong to

A

phylum

50
Q

a behavior starts with _______ which is detected by sensory receptors. Next it is evaluated by the CNS, a process referred to as ______. The CNS determines a ____, which is a pattern of nerve impulses directed by the CNS and the sequence of muscle contractions that are initiated

A

stimulus, neural integration, response

51
Q

An experiment was performed on 10 small arthropods called “pill bugs”. The animals had a choice between a dark environment. They could freely move between entire environmental conditions. The results of their choices are shown. What do the results suggest?

A

The pill bugs perform negative phototaxis when given a light stimulus

52
Q

Mother geese will roll eggs back to their nest if an egg is found outside of it. Interestingly, if the egg is removed during the process of rolling it back into the next, the mother goose will continue her behavior of rolling the egg and tucking it into her nest even in its absence. This is an example of

A

Fixed Action pattern

53
Q

Taxis is an orientation behavior where an organism moves toward or away from a stimulus

A

true

54
Q

when the brine shrimp were presented with red light, they displayed______

A

no response

55
Q

We ran an experiment with 10 test subjects. Our calculated t-value is 1.74. True or False: this result is significant at the 5% significance level?

A

false

56
Q

What kind of statistical test did we perform on the planarian data

A

a paired t-test

57
Q

Which of the following is a proper hypothesis

A

planarians will move farther with caffeine than without it

58
Q

weather

A

short-term atmospheric conditions at one specific place and time

59
Q

climate

A

long-term average of conditions based upon many years of observation

60
Q

effects of climate change

A

rising temps; increasing droughts, heat waves, desertification; melting artic and glaciers; rising sea level; increasing extreme weather events

61
Q

Range shifts

A

bring new species into contact with each other, which can majorly affect ecology and human health

62
Q

Phenology

A

the timing of life events (has changed and will continue to changed) (the date of cherry blossom peak bloom)

Chem 1127 (7 decks)

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