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Biodiversity Review

Total questions: 30

Worksheet time: 14mins

Name
Class
Date
1.
What is THE most major cause of extinction today?
a)
habitat destruction by humans
b)
poaching
c)
disease
d)
hunting
2.

Biodiversity usually refers to

a)

extinct species

b)

the variety of species in an ecosystem

c)

nonrenewable resources

d)

the rate of species decline

3.
Most of the species on Earth are
a)
plants
b)
animals
c)
fungi
d)
insects
4.

Which of the following is an example of a biotic part of the environment?

a)

wind

b)

vegetation

c)

water

d)

temperature

5.

Which level of biodiversity includes the available different HABITATS found in a certain area?

a)

Species diversity

b)

Genetic diversity

c)

Ecosystem diversity

d)

All of these

6.
The last great mass extinction  (the one that marked the end of dinosaurs) occurred
a)
6500 years ago
b)
65,000 years ago
c)
650,000 years ago
d)
65,000,000 years ago
7.
Some species are so important to the functioning  of an ecosystem that they are called
a)
keystone species
b)
cornerstone species
c)
essential species
d)
exotic species
8.

Madagascar is a biodiversity hotspot that is the only home to which primate species?

a)
gorillas
b)
chimpanzees
c)
lemurs
d)
gibbons
9.

A species that is NOT native to a particular region and takes over when it arrives is called

a)
natural
b)

invasive

c)
endemic
d)
extraordinary
10.

Which of the following describes a species that may soon be gone if nothing is done to save it?

a)
threatened
b)
invasive
c)
endangered
d)
extinct
11.
Hunting sea otters resulted in...
a)
an increase in biodiversity
b)
the extinction of sea urchins
c)
an increase in kelp population
d)
overpopulation of sea urchins
12.
Most of the original diverse prairie land is now
a)
marshes and wetlands.
b)

monoculture farmland.

c)
protected and preserved in original condition.
d)
being restored under the E.S. Act.
13.
Which of these is NOT part of the Endangered Species Act?
a)
The USFWS must make a list of all endangered species.
b)
Before beginning any new development projects,  the government must do an  environmental impact study.
c)
Once on the list, a species cannot be removed from the list.
d)
Species on the list may not be killed, caught, or disturbed.
14.
Biodiversity ________ are regions with  unusually large numbers of unique ________.
a)
hot spots ; species
b)
species ; hot spots
c)
biomes ; plants
d)
sanctuaries ; flora
15.
What is a term used for traveling with a purpose of seeing unique wildlife while being mindful of your  impact on the environment, and sometimes even participating in conservation efforts while on vacation?
a)
ecotourism
b)
endemic tourism
c)
envirovacation
d)
exotic exploration
16.

The human population is __________ by __________ people  every day, and they all use resources, and producing those resources causes habitat loss.

a)
decreasing ; 220
b)
decreasing ; 220,000
c)
increasing ; 220
d)
increasing ; 220,000
17.
Who is in charge of making a list of  all endangered or threatened species?
a)
the U.S. President
b)
USDA
c)
US Fish & Wildlife Service
d)
DCFS
18.
A place that stores seeds to preserve their genes for the future is called a/n...
a)
Botanical preserve
b)
Plant depository
c)
Seed bank
d)
Herbarium
19.

What is the most biodiverse type of aquatic ecosystem?

a)

Marshes

b)

Coral Reef

c)

Deep Ocean

d)

Rivers

20.
Where on Earth are most extinctions currently occurring?
a)
deciduous forests
b)
tropical rain forest 
c)
taiga
d)
tundra
21.

When parts, but not all, of an ecosystem are lost to development (roads, farmland, urban development), it leaves isolated, smaller pieces of land scattered inbetween. This is called...

a)

Ecosystem separatoin

b)

Habitat fragmentation

c)

Intact wilderness

d)

Environmental discontinuity

22.

Biodiversity is important because

a)

Variety decreases the stability of an ecosystem.

b)

ALL of these!

c)

Humans don't use other species for food and medicine.

d)

The more species in an ecosystem, the more likely it is to be stable.

23.

According to this graph, when was the population of Atlantic right whales the highest?

(click to enlarge graph)

a)

1990-1995

b)

2016-2021

c)

2010-2015

d)

2000-2005

24.

According to this graph, what is the biggest threat to fish populations?

(click image to enlarge)

a)

Habitat degradation

b)

Exploitation

c)

Invasive Species

d)

Pollution

25.

What impact do invasive species tend to have on an ecosystem's biodiversity?

a)

Biodiversity decreases as the invasive outcompetes and decreases native species survival.

b)

Biodiversity increases dramatically as the invasive encourages growth of other species.

c)

Biodiversity is not usually affected at all.

d)

None of these.

26.

Which term refers to when something is eaten or used unsustainably, as is common with the fishing industry today?

a)

Overconsumption

b)

Obesity

c)

Responsibility

d)

Depreciation

27.

Which yellow invasive plant species is now found in our area and can cause painful blisters if tounched?

a)

Kudzu

b)

Wild Parsnip

c)

Poison Ivy

d)

Honeysuckle

28.

Which invasive insect species has killed many trees in our area in the last 10 years?

a)

spotted lanternfly

b)

tiger mosquito

c)

zebra mussels

d)

emerald ash borer

29.

What type of lumber harvesting technique leaves almost no trees standing across a large, previously forested area?

a)

Monoculture

b)

Clear-cutting

c)

Selective cutting

d)

Tree toppling

30.

What produces about half of the Oxygen in Earth's atmosphere?

a)

Plankton & algae in the oceans

b)

the Amazon Rainforest

c)

Insects

d)

Coral Reefs

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