7.1 Biodiversity Lesson 1
Presentation
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Science
•
9th - 12th Grade
•
Practice Problem
•
Medium
+3
Standards-aligned
Amanda Duncan
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9 Slides • 22 Questions
1
7.1 Biodiversity Lesson 1
by Amanda Duncan
2
Siberian tigers are one of five remaining tiger subspecies.
In the early 20th century, hunting and habitat loss reduced the wild population to just 20–30 animals.
Conservation efforts have helped the wild population rebound to 450–500 today.
3
Multiple Choice
What 2 things caused the tiger population to decrease?
hunting and habitat loss
cold weather and hunting
global warming and habitat loss
hunting and fishing
4
5
Multiple Choice
Differences in DNA among individuals
Genetic Diversity
Species Diversity
Ecosystem Diversity
Cultural Diversity
6
Multiple Choice
Variety of species in a given area
Genetic Diversity
Species Diversity
Ecosystem Diversity
Cultural Diversity
7
Multiple Choice
Variety of habitats, ecosystems, communities
Genetic Diversity
Species Diversity
Ecosystem Diversity
Cultural Diversity
8
9
Multiple Choice
Which of the following is NOT a type of environmental science biodiversity?
Genetic
Ecosystem
Species
Cultural
10
Multiple Choice
Which ecosystem was fragile enough to be destroyed if one of it's strands goes extinct? (WATCH THE VIDEO!!!)
tropical rainforest
coral reef
11
12
Multiple Choice
All organisms are categorized into different groups at different levels.
This is called taxonomy.
True
False
13
Multiple Choice
Taxonomists organize species based on their
physical appearance only
genetic makeup only
physical appearance AND genetic makeup
physical appearance, genetic makeup, and geographic location
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15
Multiple Choice
How many species are on Earth?
5
between 5 and 30 million
30
between 5 and 30
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Multiple Choice
Where does biodiversity increase?
in zoos
open ocean
toward the equator
estuaries
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18
Multiple Choice
Resist environmental change without losing function
Resistant
Recycled
Resilient
Restarting
19
Multiple Choice
Affected by change, but bounce back and regain function
Resistant
Recycled
Resilient
Restarting
20
Multiple Choice
Intact environments provide ecosystem services, such as
water purification and recreation
water purification and pest control
pest control and water pollution
recreation and pest control
21
Multiple Choice
High biodiversity decreases stability of communities.
True
False
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23
Multiple Choice
How many of our most common prescription medications originated in nature?
118
150
all of them
268
24
Multiple Choice
How does biodiversity help agriculture?
humans can cross breed species to give plants beneficial traits
organisms in nature might have qualities that are helpful at fighting diseases
people enjoy visiting these places and help stimulate the local economy
25
Multiple Choice
How does biodiversity help the medical field?
humans can cross breed species to give plants beneficial traits
organisms in nature might have qualities that are helpful at fighting diseases
people enjoy visiting these places and help stimulate the local economy
26
Multiple Choice
How does biodiversity help the economy?
humans can cross breed species to give plants beneficial traits
organisms in nature might have qualities that are helpful at fighting diseases
people enjoy visiting these places and help stimulate the local economy
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Use this passage to answer the following questions!
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Multiple Choice
Depending on a few plants for food is
healthy for humans.
risky for humans.
good for crops.
beneficial for some species.
29
Multiple Choice
Relying on one important crop can cause
famine if the crop is wiped out.
hybrids if the crop mixes with another population.
disease if the crop came from wild plants.
a new crop variety if a new species is introduced.
30
Multiple Choice
Some types of crops can be saved from disease if
they can be genetically isolated.
they are sprayed with enough pesticide.
areas of high biodiversity are destroyed.
they are crossbred with their wild plant relatives.
31
Multiple Choice
Most crops we eat today are hybrids.
True
False
7.1 Biodiversity Lesson 1
by Amanda Duncan
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