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biology > 9 weeks test > Flashcards

9 weeks test Flashcards

1
Q

the process of gathering information about events or processes in a careful, orderly way

A

observation

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2
Q

the information gathered in an observation

A

data

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3
Q

a logical interpretation based on prior knowledge or experience

A

inference

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4
Q

a proposed scientific explanation for a set of observations

A

hypothesis

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5
Q

the idea that life could arise form nonliving matter

A

spontaneous generation

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6
Q

is an organized way of using evidence to learn about the natural world

A

science

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7
Q

an experiment in which only one variable is changed at a time

A

controlled experiment

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8
Q

variable that is delibrately changed in the experiment

A

manipulated variable

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9
Q

the variable that is observed and that changes in response to the manipulated variable

A

responding variable

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10
Q

a well explanation that unifies a broad range of observations

A

theory

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11
Q

the science that seeks to understand the living world

A

biology

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12
Q

a collection of living matter enclosed by a barrier that seperates the cell from its surroundings

A

cell

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13
Q

two cells from different parents unite to produce the first cell of the new organism

A

sexual reproduction

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14
Q

the new organism has a single parent

A

asexual reproduction

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15
Q

the combination of chemical reactions through which an organism builds up or breaks down materials as it carries out its life processes

A

metabolism

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16
Q

the process by which they keep their internal conditions stable

A

homeostasis

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17
Q

a decimal system of measurement whose units are based on certain physical standards and are scaled on multiples of 10

A

metric system

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18
Q

devices that produce magnified images by focusing visible light ways

A

mircoscopes

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19
Q

produce magnified images by focusing beams of electrons

A

electron microscopes

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20
Q

allow light to pass through the specimen and use two lenses to form an image

A

compound light microscopes

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21
Q

develops from the single original cell

A

cell culture

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22
Q

to separate different cell parts

A

cell fractionation

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23
Q

atom

A

the basic unit of matter, greek word atoms, which means able to be cut

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24
Q

formed when one or more electrons are shared between atoms

A

covalent bonds

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25
Q

positive and negative atoms

A

ions

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26
Q

two or more elements combined together to make a chemical compound

A

compound

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27
Q

smallest unit of most compounds

A

molecule

28
Q

formed when one or more electrons are transferred between the atoms

A

ionic bond

29
Q

brain of cell

A

nucleus

30
Q

negatively charged particle

A

electron

31
Q

a pure substance that consist of only one atom

A

element

32
Q

positively charged particle

A

proton

33
Q

particle with no charge

A

neutron

34
Q

produce their own food

A

autotrophs

35
Q

relies on other organisms for food

A

consumer

36
Q

eats only meat

A

carnivore

37
Q

eats dead matter

A

detrivore

38
Q

elements that have a different numbers of neutrons

A

isotope

39
Q

evolution

A

evolve

40
Q

what are the three particles that make up an atom

A

neutrons, protons, and electrons

41
Q

where are protons and neutrons and electrons found

A

protons and neutrons are found in the nucleus. electrons are orbiting it

42
Q

what are the levels of organization in order from smallest to largest

A

species, population, community, ecosystem, and biome

43
Q

what is the goal of science?

A

the goal of science is to investigate and understand the natural world, to explain events in the world, and to use those explanations to make useful predictions

44
Q

contains the combined portions of the planet in which all life exists, including land, water, and air

A

biosphere

45
Q

a group of organisms so similar to one another that they can breed and produce off spring

A

species

46
Q

groups of individuals that belong to the same species and live in the same area

A

population

47
Q

different populations that live together in one area

A

community

48
Q

a group of ecosystems that have the same climate and similar dominant communities

A

biome

49
Q

a collection of organisms that live in a particular place, together with their nonliving,or physical environment

A

ecosystem

50
Q

process by which plants make their own food by susing sunlight to create sugars and starches

A

photosynthesis

51
Q

use chemical energy to produce carbs

A

chemosynthesis

52
Q

links all of the food chains together

A

food web

53
Q

a series of steps in which organisms transfer energy by being eaten or eating something

A

food chain

54
Q

each step in a food chain or web

A

trophic level

55
Q

what are the 3 basic approaches in which scientists conduct research

A

experimenting
observing
modeling

56
Q

what are the four different cycles

A

water, phosphorus, nitrogen, carbon

57
Q

what is sunlight important

A

it is the main energy source for life

58
Q

characteristics of living things

A

living things are made up of cells
living things reproduce
living things are based on a universal code
living things grow and develop
living things obtain and use material energy
living things respond to their environment
living things maintain a stable internal environment
taken as a group living things change over time

59
Q

the process by which water changes from liquid form to an atmospheric gas

A

evaporation

60
Q

the loss of water from a plant through its leaves

A

transpiration

61
Q

why do scientists test one variable at a time

A

so they know what went wrong. it is more controlled

62
Q

why is it important for scientists to share their work

A

so other scientists can build off of their experiments

63
Q

decimal system of measurement based on tens

A

metric system

64
Q

what is the difference between hypothesis and theories

A

theories are a well tested hypothesis

hypothesis is something that can be tested

65
Q

what is the difference between interference and a observation

A

observation is something involving the 5 senses

interference is something that is concluded

66
Q

to find the protons and electrons you look at the

A

atomic number

67
Q

to find the amount of neutrons you

A

subtract the atomic mass from the atomic number

biology (11 decks)

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