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DCAP Biology 2018-2019 Unit 15 Review Flashcards | StudBud
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DCAP Biology 2018-2019 Unit 15 Review
DCAP Biology 2018-2019 Unit 15 Review
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A review of Unit 15, which covers Ecology, for a DC/AP Biology class.
Flashcards
29 cards
F
Practice quiz
P
Host live
L
Questions
29
Answers
1
How would you describe the relationship between predators and prey?
Prey populations are eliminated by predators.
As predator populations grow, prey populations grow.
As prey populations rise, predators increase.
Prey populations do not affect predator populations.
2
Female moths attract males by releasing a pheromone. This is a type of
visual communication.
chemical communication.
tactile communication.
auditory communication.
3
Barnacles use whales for transport but whales are unaffected. This is a
parasitism.
predator-prey.
commensalism.
mutualism.
4
Which of the following choices properly describes the flow of energy in an ecosystem?
Decomposers-->Sunlight-->Producers-->Consumers
Consumers-->Producers-->Decomposers
Producers-->Consumers-->Decomposers
Sunlight-->Producers-->Consumers-->Decomposers
5
A population experiencing exponential growth is
close to the carrying capacity.
has few resources available.
far from the carrying capacity.
None of these choices are correct.
6
Which trophic levels are present here?
Producers and Primary, Secondary, Tertiary Consumers
Only Tertiary Consumers
Only Primary and Secondary Consumers
Only Producers
7
Which population is decreasing in population size?
None of these choices.
I
II
III
8
Which organism is considered a producer?
Grass
Sparrow
Hawk
Mouse
9
Although energy flows through a system, chemical nutrients are
destroyed.
recycled.
created.
wasted.
10
Fireflies use light displays as a courtship ritual. This is a type of
chemical communication.
visual communication.
tactile communication.
auditory communication.
11
Bees communicate food locations using a waggle dance. This is a type of
visual communication.
tactile communication.
chemical communication.
auditory communication.
12
If Grasshoppers were removed from this food web, what would you expect to happen?
Sparrow biomass would decrease.
Grass biomass would increase.
Hawk biomass would decrease.
All of these are possible.
13
In an aquatic ecosystem, the rate of photosynthesis is less than cellular respiration, so
biomass decreases.
oxygen increases.
biomass increases.
biomass stays the same.
14
Bees pollinate flowers and receive nourishment for their queen. This is a
commensalism.
parasitism.
predator-prey relationship.
mutualism.
15
K reproductive strategists display all of the following except
Live far below carrying capacity
Slow growth
Few offspring
Great investment in rearing of young
16
Crickets produce vibrations with their legs to attract mates. This is a type of
visual communication.
auditory communication.
chemical communication.
tactile communication.
17
In an aquatic ecosystem, the rate of photosynthesis is greater than cellular respiration, so
biomass increases.
biomass decreases.
oxygen decreases.
biomass stays the same.
18
r reproductive strategists display all of these except
Little rearing of young
Large numbers of offspring
Quick growth and development
Live near carrying capacity
19
All of the following are density-dependent factors that limit population growth except
food.
weather.
predation.
nesting sites competition.
20
Which population is stable in population size?
III
None of these choices.
I
II
21
Which organism is considered a secondary consumer?
Sparrow
Mouse
Grass
Grasshopper
22
Which population is increasing in population size?
I
None of these choices.
III
II
23
What is rmax for 300 individuals between 5 and 10 hours?
About 80
About 2
About 0.5
About 50
24
Although not shown here, which organisms return nutrients to the ecosystem by causing decay?
Producers
Consumers
Predators
Decomposers
25
What could you do to decrease the biomass of owls?
Remove snakes from the food web.
Remove hawks from the food web.
Remove sparrows from the food web.
Remove Grasshoppers from the food web.
26
Why do energy pyramids shrink as the trophic levels increase?
Some energy is lost as heat.
None of these choices are correct.
Migration of individuals out of the population.
Energy is destroyed from trophic level to trophic level.
27
If trophic level I has 120,000 kJ of energy available, how much does trophic level IV have?
12,000 kJ
1,200 kJ
12 kJ
120 kJ
28
Ticks suck blood from a dog. This is a
commensalism.
mutualism.
parasitism.
predator-prey.
29
An organism takes in 5 kJ of energy. 2.5 kJ go to biomass and 0.75 go to waste leaving
None of these choices are correct.
1.75 kJ for respiration.
2.5 kJ for respiration.
0.75 kJ for respiration.
