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Biology 9 weeks test > Chapter 3 biology > Flashcards

Chapter 3 biology Flashcards

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AP® Biology flashcards Biology 101 flashcards
1
Q

Contains the combined portions of the planet in which all life exist

A

Biosphere

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2
Q

A group of organisms so similar to each other that they can produce fertile offspring

A

Species

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3
Q

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

A

Populations

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4
Q

Assemblages of diff pop. that live together in a defined area

A

Communities

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5
Q

A collection of all the organisms that live in a particular place

A

Ecosystem

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6
Q

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

A

Biome

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7
Q

Make their own food

A

Autotrophs and producers

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8
Q

Plants make their own food by using the Suns energy

A

Photosynthesis

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9
Q

How plants get their energy when they can’t get sunlight

A

Chemosynthesis

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10
Q

Organisms that rely on other organisms for their energy end food supply

A

Heterotrophs/consumers

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11
Q

Eat plants

A

Herbivores

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12
Q

Eat animals

A

Carnivores

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13
Q

Eat plants and animals

A

Omnivores

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14
Q

Eat remains of plants and animals

A

Detritivores

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15
Q

Break down organic matter

A

Decomposers

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16
Q

Series of steps in which organisms transfer energy by eating and being eaten

A

Food chain

17
Q

Links all the food chains together

A

Food web

18
Q

Each step in a fc or fw

A

Tropic level

19
Q

Show relative amounts of energy or matter within each trophic level

A

Ecological pyramid

20
Q

Total amount of living tissue with a given trophic level

A

Biomass

21
Q

The scientific study of interactions among organisms and between organisms and their environment

A

Ecology

22
Q

The process by which matter changes from liquid to gas

A

Evaporation

23
Q

Loss of water from a plant through its leaves

A

Transpiration

24
Q

The chemical substance that an organism requires to live

A

Nutrient

25
Q

Process of converting nitrogen gas into ammonia

A

Nitrogen fixation

26
Q

Conversion of nitrates into nitrogen gas

A

Denitrification

27
Q

Rate at which organic matter is created by producers in an ecosystem

A

Primary productivity

28
Q

A single nutrient that either is scarce or cycles very slowly, limiting the growth as organisms and ecosystems

A

Limited nutrient

29
Q

An immediate increase in the amount of algae and other produces that result from a large input of limiting nutrient

A

Algal bloom

Biology 9 weeks test (4 decks)

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