Answers2001340-Environmental Science Sem 1 - PearsonScientific Inquiry

Scientific Inquiry — Unit test Answers

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A mutation that causes resistance in a population of beetles is an example of _______.

A
macroevolution
B
microevolution
C
migration
D
reproduction
22
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Which of the following best describes the fate of energy in ecosystems?

A
It will ultimately be recycled back into the ecosystem.
B
It flows from secondary consumers to primary consumers.
C
It enters most ecosystems in the form of sunlight.
D
It flows through and is used by ecosystems.
23

Amaya collected insects in the forest. She was unable to identify one unusual looking insect using a dichotomous key. Amaya concluded that the insect must be a new species. Which facts would support the conclusion that the insect is a new species?

A
The insect cannot be identified based on one of the first three questions.
B
The way the insect was collected may have caused damage to its exoskeleton and wings.
C
Several other thorough and up-to-date dichotomous keys also failed to identify the insect.
D
The normal diet of many insects in the forest has been seriously altered by a recent drought.
24

Every time energy is transferred between organisms in a food web, some of the energy is lost as heat.

A
T
B
F
25

Refer to this portion of a dichotomous key for fish identification to answer the question.1. (a) Has a single dorsal fin ® 5 (b) Has a double dorsal fin ® 25. (a) Has small fin on back near tail ® 6 (b) Has no fin on back near tail ® 76. (a) Has barbs near the mouth ® Catfish (b) Does not have barbs near the mouth ® 10According to this dichotomous key, any catfish must have

A
a double dorsal fin, a small fin on the back near the tail, and barbs near the mouth.
B
a single dorsal fin, no small fin on the back near the tail, and barbs near the mouth.
C
a double dorsal fin, a small fin on the back near the tail, and no barbs near the mouth.
D
a single dorsal fin, a small fin on the back near the tail, and barbs near the mouth.
26

Which of the following is an example of a biochemical adaptation?

A
camouflage
B
migration
C
being immune to scorpion stings
D
razor sharp teeth
27

All animals are _______.

A
producers
B
omnivores
C
herbivores
D
consumers
28

Which of the following best describes the solar radiation absorbed by and radiated from earth?

A
Most incoming solar energy is absorbed by the atmosphere.
B
Only a small fraction of energy radiating from Earth is from the atmosphere.
C
The Earth’s surface is responsible for a small fraction of heat radiation to space.
D
Earth’s surface absorbs little of the energy that strikes as solar radiation.
29

Which of the following is not a possible reason for migration?

A
climate changes
B
diminished food supply
C
reproduction patterns
D
increased biodiversity
30

Which of the following is an example of a behavioral adaptation?

A
camouflage
B
migration
C
sharp teeth
D
decreased oxygen use
31

Refer to this portion of a dichotomous key for fish identification to answer the question.1. (a) Has a single dorsal fin ® 5 (b) Has a double dorsal fin ® 25. (a) Has small fin on back near tail ® 6 (b) Has no fin on back near tail ® 76. (a) Has barbs near the mouth ® Catfish (b) Does not have barbs near the mouth ® 10What do the numbers after the arrows represent?

A
the number of the question that should be considered next
B
the number of steps remaining before the organism is identified
C
the number of questions that need to be answered
D
the number of species that have the described characteristic
32

Migration causes a temporary appearance of new organisms in an ecosystem, but not a permanent one. Please select the best answer from the choices provided

A
T
B
F

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