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Check In #1: Food Webs, Ecosystems, Polar Bears

Total questions: 19

Worksheet time: 13mins

Name
Class
Date
1.
How do polar bears find Ring Seal pups?
a)
sight
b)
smell
c)
hearing
d)
vibration
2.
What is the single biggest human disturbance impacting polar bears?
a)
Chemical Pollution
b)
Noise Pollution
c)
Climate Change
3.
When do polar bears hunt and deposit blubber?
a)
Winter
b)
Fall
c)
Summer
d)
Spring
4.
When do polar bears give birth?
a)
Winter
b)
Fall
c)
Summer
d)
Spring
5.
What is an accelerometer?
a)
electromechanical device that measures heart rate
b)
electromechanical device that measures change in body motion
c)
video camera that records body motion
d)
no clue
6.
Keystone species are important in an ecosystem because...
a)
They are always the apex predator
b)
They are always the producer
c)
The food web collapses without these organisms
7.
Whales and barnacles are an example of:
a)
mutualism
b)
commensalism
c)
parasitism
8.
Dogfish shark and a tapeworm are an example of:
a)
mutualism
b)
commensalism
c)
parasitism
9.
How much energy is transferred up a food web/chain?
a)
1%
b)
5%
c)
10%
d)
50%
e)
90%
10.
Which of the following is NOT a decomposer?
a)
Sea cucumber
b)
Orca
c)
Brittle Star
d)
Christmas tree worm
e)
All are decomposers
11.
Of the species you invented in your imaginary food web, which one is most sensitive to extinction and WHY?
4 lines
12.

How much more energy is needed for a polar bear to run than rest?

(a)  

13.

The entire Antarctic food web would collapse if this organism disappeared

(a)  

14.

Name ONE thing that an organism is doing which uses energy so it is NOT available for the consumer.

4 lines
15.

Any flesh-eating animal that has no natural predators or enemies.

a)

Abiotic

b)

Biotic

c)

Keystone species

d)

Apex predator

16.

Either to the process of becoming adapted or to the features of organisms that promote reproductive success relative to other possible features.

a)

adaptation

b)

acquired traits

c)

biotic

d)

abiotic

17.

Nonliving parts of an ecosystem

a)

abiotic

b)

biotic

c)

adaptation

d)

apex predator

18.

Help to maintain local biodiversity within a community either by controlling populations of other species that would otherwise dominate the community or by providing critical resources for a wide range of species.

a)

apex predator

b)

keystone species

c)

biotic

d)

adaptation

19.

Living parts of an ecosystem

a)

abtioic

b)

biotic

c)

adaptation

d)

photosynthesis

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