Topic 5

Question 1

organism

Answer 1

living thing

Question 2

habitat

Answer 2

place for a living thing to live, grow and reproduce

Question 3

biotic factor

Answer 3

living things of an ecosystem
ex: coyote, frog, trees, plants

Question 4

abiotic factor

Answer 4

non-living things of an ecosystem
ex:water, oxygen, space, rocks

Question 5

population

Answer 5

all members of one species living in a particular area

Question 6

community

Answer 6

all the different populations that live together in an area

Question 7

ecosystem

Answer 7

all abiotic and biotic factors of a particular area

Question 8

limiting factor

Answer 8

an environmental factor that causes a population to stop growing

Question 9

Levels of Organization of an Ecosystem

Answer 9

Organism, Population, Community, Ecosystem

Question 10

Population Density

Answer 10

number of individuals/unit area

Question 11

population stability

Answer 11

births=deaths

Question 12

population increase

Answer 12

number of births is greater than number of deaths

Question 13

population decrease

Answer 13

number of deaths is greater than number of births

Question 14

immigration

Answer 14

moving into a population

Question 15

emigration

Answer 15

moving away from a population

Question 16

producer

Answer 16

organism that makes its own food

Question 17

consumer

Answer 17

organism that eats other organisms for energy

Question 18

decomposer

Answer 18

break down biotic wastes and dead organisms

Question 19

food chain

Answer 19

a series of events in which one organism eats another to obtain energy and nutrients

Question 20

food web

Answer 20

many overlapping food chains in an ecosystem

Question 21

Levels of the Energy Pyramid
(bottom to top)

Answer 21

producers, first-level, second-level, third level

Question 22

As you go up in the Energy Pyramid the amount of kilocalories (kcal)…

Answer 22

decreases by 1/10

Question 23

Which model best illustrates for flow of energy in an ecosystem best?

Answer 23

food web is more complex

Question 24

carnivore

Answer 24

producer that only eats meat

Question 25

omnivore

Answer 25

producer that eats meat and plants

Question 26

herbivore

Answer 26

producer that only eats plants

Question 27

scavenger

Answer 27

a carnivore that eats the remains of dead organisms

Question 28

law of conservation of mass

Answer 28

matter is neither created nor destroyed during any chemical of physical change.

Question 29

law of conservation of energy

Answer 29

when one form of energy is transformed to another, no energy is lost int he process

Question 30

evaporation

Answer 30

process of liquid changing to a gas

Question 31

condensation

Answer 31

process of a gas changing to a liquid

Question 32

precipitation

Answer 32

water falling to the ground in the form of rain, snow, sleet or hail

Question 33

Carbon Cycle

Answer 33

-Producers use carbon to make food.
-Consumers and producers release carbon as waste.
-Decomposers release carbon into soil and air

Question 34

Oxygen cycle

Answer 34

Producers release oxygen
Consumers take in oxygen

Question 35

Human Impact

Answer 35

human activities can make the oxygen and carbon unbalanced through deforestation and overuse