Principles Of Ecology Vocab Flashcards Preview

7th Grade Science > Principles Of Ecology Vocab > Flashcards

Flashcards in Principles Of Ecology Vocab Deck (44):
1

Organisms that use sunlight or energy stored in chemical compounds to make food (producers)

Autotrophs

2

Process used by autotrophs to make food energy from sun (plants)

Photosynthesis

3

Autotrophs that capture chemical energy since they live in places w/out sunlight (bacteria found in volcano vents)

Chemosynthesis

4

Organisms that rely on other organisms for their energy and food supply (consumers)

Heterotrophs

5

Break down organic matter (bacteria,fungi)

Decomposers

6

Show how matter and energy move through ecosystems in a series of steps showing which organisms transfer energy by eating and being eaten

Food chains

7

Models that show all possible feeding relationships at each tropic level in a community

Food webs

8

Diagram that shows amounts of energy or matter at each tropic level

Ecological pyramid

9

Elements, compounds, and other forms of matter are passed from one organism to another and from 1 part of the biosphere to another

Bio geochemical cycles

10

All the living organisms in an environment

Biotic factors

11

The nonliving parts of the environment

Abiotic factors

12

All strategies and adaptations a species uses in its environment

Niche

13

Any relationship where 2 species live closely together

Symbiosis

14

Organisms that seek out and eat each other

Predators

15

Organisms that are eaten

Prey

16

Made up of populations or organisms that live in a common area

Community

17

Anything that limits an organisms ability to live in a particular environment

Limiting factor

18

The ability of living things to survive that changes in their environment

Tolerance

19

The process of gradual, natural change and species replacement that takes place in the communities of an ecosystems over time

Succession

20

A stable community formed after primary or secondary succession

Climax community

21

Large group of ecosystems that share the same type of climax and a diverse group of plants

Biomes

22

Study of the interactions among organisms and between organisms and their environments

Ecology

23

What is the main energy source for almost all ecosystems on earth?

Sunlight

24

Why are food chains generally limited to 3 or 4 levels

Because they run out of energy

25

Name the producer in the food chain

Grass

26

Name the 3rd level consumer in the food chain

Owl

27

Dry ecosystem with porous soil, home to cacti

Desert

28

Home to many insects with precipitation year round

Tropical rain forest

29

Animals such as chipmunks, bears and bats hibernate in winter

Temperate forest

30

Plants include variety of grasses, home to lions

Savannah

31

Has a layer of permanently frozen soil

Tundra

32

Thin layer of water that covers soil, birds use it for nesting and feeding

Wetlands

33

Covers the largest part of the biosphere

Oceans

34

Area where freshwater and saltwater mix

Estuaries

35

Exists only in northern hemisphere, coniferous forests

Taiga

36

Standing body of water with low salinity

Lake

37

Both species benefit from relationship

Mutualism

37

One organism benefits and the other is neither helped not harmed

Commensalism

37

One organism lives on or in another and harms it

Parasitism

37

Eats only plants

Herbivore

37

Eats only animals

Carnivore

38

Eats plants and animals

Omnivore

39

Eats plant and animal remains

Detritivore

40

An area where an organism lives

Habitat