6.1

Question 1

population

Answer 1

group of individuals of the same species in a certain area that reproduce together.

Question 2

individual

Answer 2

a single organism.

Question 3

levels

Answer 3

scales used in ecology for studying relationships.

Question 4

abiotic factor

Answer 4

influence that comes from non-living nature.

Question 5

toxic

Answer 5

harmful for organisms

Question 6

ecology

Answer 6

the study of relationships between organisms and their environment.

Question 7

food web (food network)

Answer 7

All the feeding relationships an ecosystem.

Question 8

community

Answer 8

all the populations in a certain area.

Question 9

environment

Answer 9

The living environment of an organism.

Question 10

biotic factor

Answer 10

influence that comes from living nature.

Question 11

biomass

Answer 11

Total amount of all the high-energy substances in an organism.

Question 12

biosphere

Answer 12

All the ecosystems taken together.

Question 13

ecosystem

Answer 13

area in which a community and a biotope from a single unit.

Question 14

accumulation

Answer 14

build-up of toxic substances.

Question 15

link

Answer 15

each food source in a food chain.

Question 16

food chain

Answer 16

A series of species in which each is the food source for the next.