Quiz about Extinction

Question 1

According to most scientists, what is the biggest cause of most mass extinctions?

Accepted Answer

major change in environment/habitat

Answer

overhunting

Answer

evolution of new species to replace old ones

Answer

asteroid impact

Question 2

Which of these describes a species that has become extinct?

Accepted Answer

all members of a species have died

Answer

fewer members of the species are dying than being born

Answer

more members of the species are dying than being born

Answer

very few members of a species are alive

Question 3

Species that are in danger of becoming extinct are called __________.

Accepted Answer

endangered

Answer

not lucky

Answer

extinct

Answer

in a jam

Question 4

When a plant or animal becomes extinct, it is gone _______.

Accepted Answer

forever

Answer

until next week

Answer

for 5 years

Answer

to sleep

Question 5

Humans are causing extiction in which ways?

Accepted Answer

All of the above.

Answer

By over hunting animals for food or products.

Answer

By destroying the natural habitat of species.

Answer

By polluting the environments of the world.

Question 6

Which is LEAST LIKELY to push a species toward extinction?

Accepted Answer

b.  Putting animals in a zoo

Answer

a.   Cutting down entire forest

Answer

c.   Polluting mountain streams

Answer

d.   Introducing new species to an ecosystem with no known natural predator

Question 7

What would most likely happen if a bird species had fewer and fewer offspring each year?

Accepted Answer

The species would become endangered.

Answer

The species would move to another ecosystem.

Answer

There would be too many birds.

Answer

Predators of the species would increase in number.

Question 8

True or False: Human beings are wiping out species much faster than nature creates them, causing what scientists call a "6th extinction"

Accepted Answer

true

Answer

false

Question 9

Which of the following species is extinct?

Accepted Answer

woolly mammoth

Answer

giant panda

Answer

bald eagle

Answer

green sea turtle

Question 10

Which of the following is NOT a reason a species may become extinct?

Accepted Answer

reproducing

Answer

competition

Answer

habitat loss

Answer

overhunting

Question 11

When scientists discuss the Sixth Extinction, they are referring to which pattern in the rate of extinction?

Accepted Answer

an increased rate caused by human activity

Answer

an increased rate caused by volcanic activity

Answer

a fluctuating rate caused by human activity

Answer

a fluctuating rate caused by volcanic activity

Question 12

How many mass extinctions have occurred on Earth?

Accepted Answer

5

Answer

3

Answer

4

Answer

6

Question 13

Evidence of an animal or plant that lived a long time ago on Earth is called a ________.

Accepted Answer

fossil

Answer

tiger

Answer

extinct

Answer

endangered

Extinction

13 questions