Keystone Test Keystone Biology: Ecology and Homeostasis 2

Question 1

Which term describes the relationship where one organism benefits and the other is harmed?

Accepted Answer

Parasitism

Answer

Mutualism

Answer

Commensalism

Answer

Competition

Question 2

What is the carrying capacity of an ecosystem?

Accepted Answer

The maximum population size an environment can support

Answer

The total number of species in an area

Answer

The amount of rainfall an ecosystem receives

Answer

The number of predators in a habitat

Question 3

Which type of symbiosis benefits both organisms involved?

Accepted Answer

Mutualism

Answer

Parasitism

Answer

Commensalism

Answer

Predation

Question 4

What is the primary source of energy for most ecosystems on Earth?

Accepted Answer

Sunlight

Answer

Geothermal energy

Answer

Wind energy

Answer

Chemical energy from minerals

Question 5

What happens to a population when birth rate exceeds death rate?

Accepted Answer

The population grows

Answer

The population declines

Answer

The population stays the same

Answer

The population reaches carrying capacity immediately

Question 6

Which process allows cells to release energy from glucose?

Accepted Answer

Cellular respiration

Answer

Photosynthesis

Answer

Osmosis

Answer

Mitosis