Ecosystem

Question 1

Both benefit from the relationship

Answer 1

Mutualism

Question 2

One benefit and One is harmed

Answer 2

Parasitism

Question 3

One benefits and the other is neither harmed or benefitted

Answer 3

Commensalism

Question 4

Same or different species; both have a better chance of survival

Answer 4

Collaboration

Question 5

Species in a community interact and depend on each other

Answer 5

Collaboration

Question 6

A … is a group of individuals of the same species, living together in the same area.

Answer 6

Population

Question 7

A group of several different populations living in close association makes up a …

Answer 7

Community

Question 8

Autotrophs.
Organisms that can make their own food

Answer 8

Producers

Question 9

Heterotrophs.
Organisms that obtain their food from other organisms

Answer 9

Consumers

Question 10

Decomposers.
Organisms that feed on dead organic matter. E.g. Bacteria

Detritivores.
Organisms that feed o decaying organic matter. E.g. Earth worms

Answer 10

Decay Organisms

Question 11

Types of food pyramids

Answer 11

-Pyramid of numbers
-Biomass pyramid
-Energy pyramid
-Productivity pyramid

Question 12

The … of an ecosystem is the total dry weight of biological material in the community.
It is measured in dry weight per unit area.

Answer 12

Biomass

Question 13

… is the rate at which biomass accumulates (or energy stored) in an ecosystem.
It is measured as dry weight or energy per unit area per unit time.

Answer 13

Productivity

Question 14

… Pyramids and biomass pyramids are often very similar.
The amount of energy at each trophic level depends on the amount of biomass

Answer 14

Energy pyramids

Question 15

Levels of energy pyramids

Answer 15

Bottom —– Top
Energy from sun- 100%- energy of producers
10%- Energy of primary consumers
1%- Energy of secondary consumers
0.1%- Energy of tertiary consumer