BM2 Week 2 Review

Question 1

A female dog’s niche includes (examples)

Answer 1

• Fleas that infest the dog.
• Number of puppies the dog has.
• How the dog protects its owners.

Question 2

The carrying capacity of an environment for a particular species at a particular time is determined by the…

Answer 2

Supply of the most limited resources.

Question 3

Write a statement that explains why the growth of orchids on the high branches of a tropical tree is an example of commensalism.

Answer 3

The trees are neither benefited nor harmed.

Question 4

The difference between a parasite and a predator is that a predator…

Answer 4

Usually kills and eats its prey.

Question 5

An endangered species is (define)

Answer 5

A species in danger of extinction.

Question 6

How many species are estimated to be living on Earth?

Answer 6

Between 10 and 50 million.

Question 7

The United States laws that protect endangered species are

Answer 7

Are considered to be the strongest in the world.

Question 8

What are examples of things that are illegal under the Endangered Species Act?

Answer 8

• Capturing a wild animal listed as a threatened species for exhibit at the zoo.
• Digging up an endangered plant in a park.
• Destroying the habitat of an endangered plant.

Question 9

What are some reasons for preserving biodiversity?

Answer 9

• Isolating unique genetic material so it can be incorporated into existing crops.
• Increasing the chances of discovering organisms with medicinal value.
• Finding new plants that can supplement the world’s food and supply.

Question 10

Because of the Endangered Species Act, the sale of protected animals or plants is…

Answer 10

Punishable by a substantial fine.