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Concepts of Biology

Samantha Fowler, Rebecca Roush, James Wise

Chapter 21

Conservation and Biodiversity - all with Video Answers

Educators

SW

Chapter Questions

00:31

Problem 1

The Svalbard seed vault is located on Spitsbergen island in Norway, which has an arctic climate. Why might an arctic climate be good for seed storage?

Morgan Thompson
Morgan Thompson
Numerade Educator
00:24

Problem 2

The number of currently described species on the planet is about ________.
a. 17,000
b. 150,000
c. 1.5 million
d. 10 million

Morgan Thompson
Morgan Thompson
Numerade Educator
00:27

Problem 3

A secondary plant compound might be used for which of the following?
a. a new crop variety
b. a new drug
c. a soil nutrient
d. a crop pest

Morgan Thompson
Morgan Thompson
Numerade Educator
00:49

Problem 4

Pollination is an example of ________.
a. a possible source of new drugs
b. chemical diversity
c. an ecosystem service
d. crop pest control

Morgan Thompson
Morgan Thompson
Numerade Educator
00:32

Problem 5

Converting a prairie to a farm field is an example of ________.
a. overharvesting
b. habitat loss
c. exotic species
d. climate change

Morgan Thompson
Morgan Thompson
Numerade Educator
00:40

Problem 6

Which two extinction risks may be a direct result of the pet trade?
a. climate change and exotic species introduction
b. habitat loss and overharvesting
c. overharvesting and exotic species introduction
d. habitat loss and climate change

Morgan Thompson
Morgan Thompson
Numerade Educator
00:44

Problem 7

What kind of ecosystem are exotic species especially threatening to?
a. deserts
b. marine ecosystems
c. islands
d. tropical forests

Morgan Thompson
Morgan Thompson
Numerade Educator
00:37

Problem 8

Certain species of parrot cannot be brought to
the United States to be sold as pets. What is the name of the legislation that makes this illegal?
a. Red List
b. Migratory Bird Act
c. CITES
d. Endangered Species Act (ESA)

Morgan Thompson
Morgan Thompson
Numerade Educator
00:33

Problem 9

What is the name of the first international agreement on climate change?
a. Red List
b. Montreal Protocol
c. International Union for the Conservation
of Nature (IUCN)
d. Kyoto Protocol

Morgan Thompson
Morgan Thompson
Numerade Educator
00:29

Problem 10

Explain how biodiversity loss can impact crop diversity.

Morgan Thompson
Morgan Thompson
Numerade Educator
00:30

Problem 11

Describe two types of compounds from living things that are used as medications.

Morgan Thompson
Morgan Thompson
Numerade Educator
00:34

Problem 12

Describe the mechanisms by which human population growth and resource use causes
increased extinction rates.

Morgan Thompson
Morgan Thompson
Numerade Educator
01:19

Problem 13

Explain what extinction threats a frog living on a mountainside in Costa Rica might face.

Morgan Thompson
Morgan Thompson
Numerade Educator
01:20

Problem 14

Describe two considerations in conservation preserve design.

Morgan Thompson
Morgan Thompson
Numerade Educator
01:26

Problem 15

Describe what happens to an ecosystem when a keystone species is removed.

Morgan Thompson
Morgan Thompson
Numerade Educator