Assessment Test 4 review (ecology)

An organism that is killed and eaten by another organism

• Predator
• Prey
• Competition
• Adaptation

A consumer that hunts is called:

• a producer.
• an omnivore.
• a predator.
• a herbivore.

An organism that lives on or in a host and causes it harm is called

• a host
• a parasite
• a cell
• a virus

A plant species that hasn't historically grown in an area is called:

• symbiotic

• natural

• non-native

• native

Native plants can be crowded out by non-native ones hogging sunlight & soil nutrients, and by giving off chemicals to hurt other plant species.

• True

• False

Governments do not allow invasive non native species because they might not

• have predators

• have prey

• have a host

• be a scavenger

Use the diagram answer the question.

If the Dragon fly population decrease, what would be the most direct effect?

• The phytoplankton population would decrease in size because it loss a prey

• The phytoplankton population would stay constant in size because it loss a predator

• The phytoplankton population would increase in size because it loss a predator

• The phytoplankton population would decrease in size because it loss a predator

What point on the graph represents the carrying capacity?

• A

• B

• C

• D

A population is...

• A group of one species in one area
• Multiple species that live in one area
• All of the living and nonliving things in an area
• None of these

As a population grows, it will most likely stop growing at what size?

• Growth limit
• Exponential limit
• Carrying Capacity
• It won't stop growing