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Biology > Exam pt.2 > Flashcards

Exam pt.2 Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

primary organs of the excretory system

A

kidneys

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2
Q

the removal of waste substances from the body

A

excretion

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3
Q

regulation of the body’s waking and sleeping cycles

A

pineal gland

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4
Q

fruit of the grass plant

A

grain

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5
Q

produce the pancreatic hormones insulin and glucagon

A

islets of langerhans

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6
Q

the return of these molecules

A

reabsorption

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7
Q

lack of iodine

A

goiter

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8
Q

skin and glands associated with it

A

integumentary system

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9
Q

fight or flight hormone

A

epinephrine

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10
Q

stable internal environment

A

homeostasis

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11
Q

plants that grow for two growing seasons

A

biennials

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12
Q

female reproductive organ

A

estrogen

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13
Q

38-40 weeks conception to birth

A

gestation

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14
Q

the study of living things

A

biology

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15
Q

pigment responsible for skin color

A

melanin

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16
Q

reduces level of sugar in the blood

A

insulin

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17
Q

underneath dermis

A

subcutaneous layer

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18
Q

plants that grow for many growing seasons

A

perennials

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19
Q

triggers the body to go to sleep

A

melatonin

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20
Q

1 leaf per node

A

alternate

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21
Q

above the ground

A

shoot system

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22
Q

responsible for the continuation of the human race

A

reproductive system

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23
Q

oil that waterproofs your skin and keeps it soft and flexible

A

sebum

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24
Q

an enzyme the kidneys released if the blood pressure gets too low

A

renin

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25
Q

the ninth week of development until birth

A

fetus

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26
Q

leaves fall off in the winter

A

deciduous

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27
Q

master gland

A

pituitary gland

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28
Q

regulation of water reabsorption is controlled by
the brain using

A

ADH

29
Q

results when the pancreas does not produce adequate amounts of insulin or when the body does not respond properly to the insulin that is produced

A

diabetes mellitus

30
Q

more serious skin disease

A

skin cancer

31
Q

secretes thyroxine a hormone that regulates general activities related to metabolism and oxidation

A

thyroid gland

32
Q

beneath the epidermis, most complex layer of skin

A

dermis

33
Q

microscopic network of blood vessels and renal tubules where the blood is filtered and purified

A

nephrons

34
Q

artificial kidney use the process of

A

dialysis

35
Q

the time of physical transition from child to adult

A

adolescence

36
Q

communicates with chemical messengers

A

endocrine system

37
Q

the process of birth

A

labor

38
Q

source of the protective qualities of the upper epidermis

A

keratin

39
Q

make their own food

A

autotroph

40
Q

3 purposes of the skin

A

communication, protection, secretion

41
Q

contain developing leaf or stem structures

A

bud

42
Q

produce egg cells only before birth

A

ovaries

43
Q

one main root and a few secondary roots

A

taproot system

44
Q

2 leaves per node

A

opposite

45
Q

liquid waste that the body needs to remove

A

urine

46
Q

growth hormone

A

somatotropin

47
Q

the stage in which the reproductive organs mature and the person becomes physically able to reproduce

A

puberty

48
Q

the moment when life begins

A

conception

49
Q

transfer of pollen from an anther to the stigma

A

pollination

50
Q

messengers of the endocrine system

A

hormones

51
Q

The process whereby a plant’s chloroplasts capture
the radiant energy of light and convert it into the chemical energy of food

A

photosynthesis

52
Q

below the ground

A

root system

53
Q

male reproductive hormone

A

testosterone

54
Q

obtain their food from an outside source

A

heterotroph

55
Q

top layer of skin

A

epidermis

56
Q

an enzyme the kidneys released if the blood pressure gets too low

A

renin

57
Q

the unborn child

A

embryo

58
Q

provides a place for an unborn child to develop

A

uterus

59
Q

ovary is fleshy and juicy throughout

A

berry

60
Q

a period of inactivity

A

dormancy

61
Q

primary function is to regulate body temperature

A

sweat glands

62
Q

lipid molecules that are important hormones

A

steroids

63
Q

reproductive cells

A

gametes

64
Q

increases level of sugar in the blood

A

glucagon

65
Q

plants that grow for one growing season

A

annual

66
Q

most serious skin cancer

A

malignant melanoma

67
Q

flowering seed plants

A

angiosperms

68
Q

carries oxygen and nutrients from the placenta to the baby, and two umbilical arteries carry wastes from the baby to the placenta

A

umbilical cord

69
Q

when sperm and egg come together

A

fertilization

Biology (4 decks)

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