Benchmark test Flashcards

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1
Q

what are greenhouse gases

A

carbon, mathane, and H2O. they trap and hold in heat

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2
Q

what is the goal of science

A

to investigate and undertstand the natural world, to explain events in the natural world, and to use those explanation to make useful predictions

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3
Q

quanatative data

A

exact number measurements of data

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4
Q

qualatative

A

desciptive data

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5
Q

what are the 8 characteristics of a living thing

A

made of cells, reproduce, based of a universal genentic code, grow and develop, obtain and use materials and energy, respond to environment, maintain a stable invernal environment, and change over time

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6
Q

what are the 8 characteristics of a living thing

A

made of cells, reproduce, based of a universal genentic code, grow and develop, obtain and use materials and energy, respond to environment

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7
Q

what is a centrifudge

A

an obejct that breaks cells open to get DNA

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8
Q

what is true about a compound

A

the chemical and physical properties are very different

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9
Q

what is a valence electron

A

outermost electron that is involved in chemical reactions

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10
Q

what is the difference between a pos and neg charge

A

a pos charge gives and a neg charge takes

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11
Q

what is an ionic bond

A

bonds formed hen one or more electros are transferred from one atom to another

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12
Q

true or false: ice is more dense than water

A

false…ice is less dense

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13
Q

what is a monosacharides

A

a carbohydrate

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14
Q

what are fats, proteins, and nucleic acids made of (different_

A

fats are made of fatty acids proteins are made of amino acids, and nuclic acids are made from DNA

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15
Q

what to enzymes do to chemical reactions

A

speed them babies up

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16
Q

what are the levels of organization

A

Biosphere, ecosystem, community, population, organism, group of cells, cells, molecule

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17
Q

in the food chain, what are algae

A

producers

18
Q

what are chemosynthetic bacteria

A

bacteria that dont need sunlight to live

19
Q

what is biomass

A

total amount of living tissuewithin a given trophic level

20
Q

what eats both producers and consumers

A

omnivores

21
Q

snake eats from that ate a snake what level is the snake

A

level three consumer

22
Q

what is the differnece from energy and nutrients

A

energy moves through the ecosystem in one direction while nutrients gets recyles

23
Q

what is a limiting nutrient ina fresh water pond

A

phosphuras

24
Q

unequal of earths surfrace creates ____

A

WID, CURRENTS, HEAT, AND CLIMATES

25
Q

what is a microclimate

A

a tiny forest ina desert

26
Q

two biomes with leats rain

A

desert and tundra

27
Q

what is necasary for a water ecosystem

A

salt, water, nutrients, and oxygen

28
Q

what is not true about the ocean

A

lowtide marks extends to end of continent

29
Q

if you live ina fast flowing environment you need:

A

suckers, claws, ect;

30
Q

what is it called when there are a bunch of plants in one area or a number of individuals in one area

A

population density

31
Q

what does range do

A

gives you a general idea of where

32
Q

what is it called when you are reproducing at a constant rate

A

exponential growth…j curve

33
Q

what is a logstic or stable growth

A

s curve

34
Q

what is a limiting facotr that would affect a sea otter

A

predators, pollution, competition

35
Q

what is deforestation

A

the un doing of thy forest

36
Q

what is the number of differnet species in biosphere called

A

biodiversty

37
Q

ozone depetian

A

chloroflorocarbons

38
Q

SHA: two jobs of enzymes

A

enzymes are proteins that act as a biolgocial catalyst and speed up chemical reactions that take place in cellsby lowering the activation energy
to build pathways in body

39
Q

what is density independent facotr

A

limiting factor that affects al populations in similar ways, no pop no issue
exmaples are wildfires, or any other natural diasters

40
Q

how are hunters dif today

A

high tech weapons, its a sport

41
Q

how is the earth like an island

A

earth is surrounded by sapce like islands are by water we have a set # of resources and self susstainable

42
Q

in a picture of an ecosystem where are the most nutrients

A

the bottom of rthe rover