B14 Organisms and their Environment

Question 1

What is a community?

Answer 1

A group of interdependent species

Question 2

What is an ecosystem?

Answer 2

A system in which a community interacts with the abiotic parts of the environment

Question 3

A sustainable ecosystem is maintained through _______ processes.

Answer 3

Natural

Question 4

List 2 examples of limiting factors for a population:

Answer 4

• Access to food+water
• Availability of mates

Question 5

List 3 examples of abiotic factors:

Answer 5

• Light intensity
• Soil pH/mineral content
• Temperature

Question 6

What is mutualism?

Answer 6

The beneficial interactions between 2 organisms

Question 7

What is parasitism?

Answer 7

When an organism exploits a host organism for survival

Question 8

What is commensalism?

Answer 8

Symbiosis in which only one individual is benefitted, and the other is unaffected

Question 9

True or false- sustainable populations live above their carrying capacity.

Answer 9

False- they live at or below their carrying capacity

Question 10

What is the characteristic of a stable community?

Answer 10

A roughly constant population

Question 11

List 4 things that animals may compete for:

Answer 11

-Food
-Water
-Territory
-Mates

Question 12

What are the 3 types of adaptation?

Answer 12

-Structural
-Behavioural
-Functional

Question 13

List 2 examples of structural adaptations:

Answer 13

-Thick layer of blubber
-Camouflage

Question 14

Name an example of a behavioural adaptation:

Answer 14

Migration

Question 15

What is a functional adaptation?

Answer 15

Adaptations that affect bodily processes

Question 16

Name an example of a functional adaptation:

Answer 16

-Hibernation (conserves energy)

Question 17

What are extremophiles?

Answer 17

Organisms that thrive in extreme conditions

Question 18

How do producers derive food?

Answer 18

Autotrophically

Question 19

What are the 2 methods that can be used to study organism distribution?

Answer 19

-Quadrants
-Transects

Question 20

List 3 factors affecting organism distribution:

Answer 20

-Water availability
-Temperature
-Atmospheric composition