Which of these is NOT true of ectotherms?

Mammals and birds are ectotherms.

Which of these scenarios best describes the use of a chemical signal?

A skunk releases a pungent spray to scare off potential predators.

Which of these statements best describes an autotroph?

It obtains energy from physical or chemical sources in its environment.

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AP Biology Unit 8: The Basics of Ecology

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Are you familiar with the different types of signals organisms use to communicate with each other? Can you describe how energy flows through ecosystems? Put your knowledge to the test with this Barron's quiz developed from our must-have AP® Biology Premium study guide. #apbiology #biology #apbio #apprep #ecology #energy #highschool #grade10 #grade11 #grade12 AP® is a registered trademark of the College Board, which was not involved in the production of, and does not endorse, this product.

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Questions 10

Answers

1
Which of these is NOT true of ectotherms?
They must change their behaviors to regulate their body temperature.
Mammals and birds are ectotherms.
They lack internal mechanisms for maintaining body temperature.
They obtain heat from their environment.
2
When a top predator is removed from an ecosystem, the food web may collapse. This exemplifies __________.
bottom-up regulation
kleptoplasty
adaptive radiation
top-down regulation
3
Which of these scenarios best describes the use of a chemical signal?
A plant curls up parts of its body as a form of protection.
A primate uses vocalization to assert its dominance.
A shark sends a signal through the water to locate its prey.
A skunk releases a pungent spray to scare off potential predators.
4
These organisms obtain energy from carbon compounds made by other organisms.
heterotrophs
decomposers
autotrophs
detritivores
5
Smaller organisms tend to have __________ than larger organisms.
a higher metabolic rate
a lower metabolic rate
a smaller trophic level
fewer mutations
6
Meerkats huddle together for warmth and remove parasites from each other’s fur. These are examples of __________.
physiological responses
bottom-up regulation
top-down regulation
cooperative behaviors
7
On average, what percentage of energy is transferred up each trophic level?
100%
1%
50%
10%
8
Aposematism is an example of this type of stimulus.
electrical signal
visual signal
audible signal
tactile signal
9
Which of these statements best describes an autotroph?
It builds macromolecules using hydrolysis reactions.
It typically exhibits kleptoplasty.
It obtains energy from physical or chemical sources in its environment.
It obtains energy by consuming the organic waste of dead plants.
10
Between trophic levels, energy __________.
remains the same
cannot be measured
is lost
is gained

AP Biology Unit 8: The Basics of Ecology Flashcards | StudBud

AP Biology Unit 8: The Basics of Ecology

10 termsStudBud Administration6,396 plays

Flashcards10 cardsFPractice quizPHost liveL

Questions 10

Answers

1
Which of these is NOT true of ectotherms?
They must change their behaviors to regulate their body temperature.
Mammals and birds are ectotherms.
They lack internal mechanisms for maintaining body temperature.
They obtain heat from their environment.
2
When a top predator is removed from an ecosystem, the food web may collapse. This exemplifies __________.
bottom-up regulation
kleptoplasty
adaptive radiation
top-down regulation
3
Which of these scenarios best describes the use of a chemical signal?
A plant curls up parts of its body as a form of protection.
A primate uses vocalization to assert its dominance.
A shark sends a signal through the water to locate its prey.
A skunk releases a pungent spray to scare off potential predators.
4
These organisms obtain energy from carbon compounds made by other organisms.
heterotrophs
decomposers
autotrophs
detritivores
5
Smaller organisms tend to have __________ than larger organisms.
a higher metabolic rate
a lower metabolic rate
a smaller trophic level
fewer mutations
6
Meerkats huddle together for warmth and remove parasites from each other’s fur. These are examples of __________.
physiological responses
bottom-up regulation
top-down regulation
cooperative behaviors
7
On average, what percentage of energy is transferred up each trophic level?
100%
1%
50%
10%
8
Aposematism is an example of this type of stimulus.
electrical signal
visual signal
audible signal
tactile signal
9
Which of these statements best describes an autotroph?
It builds macromolecules using hydrolysis reactions.
It typically exhibits kleptoplasty.
It obtains energy from physical or chemical sources in its environment.
It obtains energy by consuming the organic waste of dead plants.
10
Between trophic levels, energy __________.
remains the same
cannot be measured
is lost
is gained