Unit 3: Endangered Species

Question 1

Extinction

Answer 1

When all members of a species die.

Question 2

Threatened species

Answer 2

A species that has a high chance of becoming extinct.

Question 3

Least concerned species

Answer 3

Widespread and abundant species.

Question 4

Why is it important to have high genetic diversity?

Answer 4

It produces a wide range of phenotypes, increasing the chance that some individuals can survive and reproduce.

Question 5

Why should we maintain genetic diversity among our domesticated species of crop and livestock?

Answer 5

So they can adapt to future changing conditions and new diseases.

Question 6

What type of organisms are likely to be a species of least concern?

Answer 6

Generalists

Question 7

What are some strategies to protect animal and plant populations?

Answer 7

Protection of habitats, hunting regulations, protection against invasive species, increasing genetic diversity, criminalize poaching.

Question 8

Why is high genetic diversity important in the context of reproducing?

Answer 8

It decreases the chance of offspring receiving a harmful mutation from both parents because there are more genotypes present.

Question 9

Major extinction events are a loss of at least __% of all species within a ____________ year period.

Answer 9

75, 2 million

Question 10

Which are more vulnerable to extinction, endangered or threatened species?

Answer 10

Endangered

Question 11

5 main causes of extinction

Answer 11

Agriculture, climate change, disease, pollution, and wildlife crime.