Extinction of Species MCQs

Extinction of Species MCQs (multiple-choice questions) explores various aspects of species extinction, covering topics such as causes, consequences, conservation efforts, and extinction rates.

So if you’re studying for an exam or seeking to deepen your understanding of ecology and conservation biology, these MCQs offer valuable learning opportunities for students and enthusiasts alike.

Let’s start with the MCQs below and expand your knowledge of biodiversity conservation!

MCQ on Extinction of Species

A _ species is a foreign species that’s brought into a new environment
Endangered
extinct
introduced
None of these

Correct Answer

introduced

Introduced species that are very aggressive and take over habitats are called _ species

invasive
Endangered
extinct
recessive

Correct Answer

invasive

Invasive species often have a large environmental impact and cause the numbers of _ species to decline

Endangered
extinct
recessive
native

Correct Answer

native

The extinction of species refers to the permanent loss of a particular group of organisms from Earth. This loss can occur due to various factors, including habitat destruction, pollution, climate change, and invasive species.

One example of an invasive species is?

Sea urchin
water hyacinth
Starfish
cow

Correct Answer

 water hyacinth

Water hyacinth was introduced into the _ during the 1884 exposition in New Orleans

American South
South france
South italy
South brazil

Correct Answer

American South

Water hyacinth was introduced into the american south during the _ exposition in New Orleans

1897
1907
1884
1926

Correct Answer

1884

Water hyacinth was introduced into the american south during the 1884 exposition in _

Indiana
New Orleans
Chicago
california
Exploring the extinction of species

Correct Answer

New Orleans

Many scientists believe Earth is experiencing its __ mass extinction

1st
5th
4th
6th

Correct Answer

6th

The most famous mass extinction event is the one that occurred about __ million years ago and included the extinction of the dinosaurs

20
200
65
1000

Correct Answer

65

Some species are so connected with other organisms in their environment that their extinction changes the entire composition of species in the area. Species that have such great effects on the balance of other species in their environment are called _ species

invasive
Endangered
extinct
keystone

Correct Answer

keystone

An example of a keystone species is?

purple seastar
Sea urchin
water hyacinth
Starfish

Correct Answer

purple seastar

One way biologists can monitor the health of particular environments and the organisms that live in them is by measuring the success of _ species

Endangered
extinct
keystone
Indicator

Correct Answer

Indicator

species whose presence or absence in an environment gives information about that environment are _ species?

Endangered
extinct
keystone
indicator

Correct Answer

indicator

The Great Law of the _ says that “people must consider the impact of their actions not just on the current generation, but on future generations that aren’t yet born.

Scleiden
schwann
Iroquois
pasteur

Correct Answer

Iroquois

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