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Life Science 7 > EXAM 1-7 > Flashcards

EXAM 1-7 Flashcards

1
Q

worldview

A

overarching narrative that a person uses to see and interpret the world

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2
Q

data

A

information collected of obtained by observation

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3
Q

taxonomy

A

the science of sorting organisms into groups

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4
Q

how many days do creationists say that God created the world in

A

6

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5
Q

cell theory

A
  1. all living things are made from cells
  2. all cells come from preexisting cells
  3. cells perform the functions of living things
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6
Q

tissue

A

a group of cells working together to perform a particular function

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7
Q

organ

A

a group of tissues working together to perform a particular function

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8
Q

unicellular

A

one - celled organism

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9
Q

multicellular

A

many cells working together

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10
Q

osmosis

A

special type of diffusion where molecules of water pass through a semi-permeable membrane

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11
Q

aerobic

A

uses oxygen

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12
Q

anaerobic

A

doesn’t use oxygen

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13
Q

producers

A

can make their own food; photosynthesis

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14
Q

consumers

A

can’t make their own food; eat producers or other consumers

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15
Q

ATP

A

energy molecule of the cell

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16
Q

what is needed for photosynthesis

A

sunlight, carbon dioxide, water

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17
Q

what does photosynthesis produce

A

glucose and oxygen

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18
Q

three parts of a nucleotide

A

sugar, base and phosphate

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19
Q

fertilization

A

the joining of gametes; egg & sperm

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20
Q

replication

A

copying of DNA

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21
Q

what does replication produce

A

identical DNA copies

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22
Q

mitosis

A

cell dividing its chromatin

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23
Q

what does mitosis produce

A

two identical daughter cells

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24
Q

meiosis

A

cell division that results in 4 haploid gametes

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25
Q

transcription

A

making working copies of DNA called RNA

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26
Q

translation

A

converting RNA code into proteins

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27
Q

heredity

A

the study of how traits are passed from one generation to the next

28
Q

phenotype

A

a physical description; black wool

29
Q

genotype

A

letters indicating traits; Bb, BB, bb

30
Q

in genotypes, what do capital letters represent?

A

dominant traits

31
Q

in genotypes, what do lowercase letters represent?

A

recessive traits

32
Q

simple dominance

A

when a dominant traits “hides” the recessive trait

33
Q

incomplete dominance

A

blending of traits; black and white = grey

34
Q

codominance

A

both traits are present; black and white = black and white

35
Q

how many blood type alleles are there?

A

3

36
Q

fossil

A

the preserved remains of plants and animals

37
Q

mineralized fossil

A

turned to stone; petrified wood

38
Q

trace

A

not the actual organism but something showing they existed; bite marks, egg shells, etc

39
Q

original material

A

actual material from the fossilized animal; dino DNA

40
Q

fixity of the species

A

idea that species do NOT change over time

41
Q

Survival of the fittest

A

process by which individuals with the better traits survive and reproduce

42
Q

theory of acquired characteristics

A

passing down traits to offspring

43
Q

modern synthesis

A

the combining of natural selection and mutations

44
Q

benefits of bacteria

A

decomposing waste, fixing nitrogen in the soil, aiding in digestion, bioremediation, medicines etc.

45
Q

antibiotic resistant bacteria

A

bacteria that is not harmed in the presence of a antibiotic

46
Q

latent virus

A

a virus that is hidden; HIV or cold sore

47
Q

how to prevent a virus

A

washing your hands and surfaces; well balanced diet, exercise, vaccinations

48
Q

what is a vaccine

A

a deadened or weakened form of a virus

49
Q

how does a vaccine work

A

your body fights off the virus and then “remembers” how to fight the virus the next time you encounter it

50
Q

ciliates

A

move with cilia (tiny hair-like structures)

51
Q

example of a ciliate

A

paramecium

52
Q

Euglenoids

A

consume prey & use photosynthesis

53
Q

Flagellum

A

whip-like structure used for movement

54
Q

plankton

A

tiny organisms that float near the ocean’s surface and are directly/indirectly the main food source for marine animals

55
Q

Amoeboid protist

A

moves using pseudopods

56
Q

plant-like protist

A

perform photosynthesis

57
Q

example of a plant-like protist

A

algae

58
Q

fungus-like protist

A

resemble fungus; caused the Irish potato famine

59
Q

microspordians

A

extremely small, parasitic and always found on the insides of animals

60
Q

slime mold

A

individual cells can clump together in large masses when food is scarce

61
Q

use pseudopods

A

amoeba

62
Q

hyphae

A

long cells bound together in a fungus

63
Q

benefits of fungi

A

antibiotics/medicine, foods (chocolate/cheese), recycling of dead matter, bioremediation etc.

64
Q

dangers of fungi

A

can be poisonous (not necessarily brightly colored)

65
Q

what do all fungi produce

A

spores

66
Q

lichens

A

secrete chemicals that slowly decompose stone; fungi & alga

67
Q

symbiosis

A

when two organisms live in close relationship with each other

Life Science 7 (2 decks)

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