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Ecology AP Bio Review

Total questions: 20

Worksheet time: 22mins

Name
Class
Date
1.

Which of the following is NOT recycled through the ecosystem?

a)

Matter

b)

Chemicals

c)

Nutrients

d)

Energy

2.

Which of the following would be an example of a density-dependent limiting factor for a population?

a)

The temperature increases making it difficult for plants to gain enough water to live.

b)

A fungus kills 25% of the population of trees, and spreads so easily that the distance between the trees doesn't matter

c)

Humans build a subdivision in the grassland which lowers the population of foxes.

d)

Increased competition among squirrels lead to fewer offspring surviving to adulthood.

3.

Using the following organisms, create a pyramid of energy: corn, mouse, owl. If the producers start out with 100,000 J of energy, write in how much energy would be available for the other levels in the energy pyramid.

4.

Non-living factors such as temperature and humidity are also referred to as (a)   factors

5.

The black rhinoceros is a mammal found in Africa. Weighing in at up to 1,350 kg, these rhinos can live roughly 35 years. Gestation in the black rhino lasts for 15-16 months, with calves staying under the mother’s parental care for up to four years.

Black rhinos have been hunted extensively by humans for their horns. Poaching pressure has reduced the black rhino population to an endangered level. Ongoing efforts are attempting to save the animal from extinction.


How can the black rhino survivorship strategy be categorized?

a)

K-selection, type I

b)

K-selection, type III

c)

r-selection, type I

d)

r-selection, type III

6.
Which point on the graph represents carrying capacity?
a)
A
b)
B
c)
C
d)
D
7.
Which of these populations is experiencing the fastest growth?
a)
A
b)
B
c)
C
d)
D
8.
Oxpeckers feed on the ticks found on a rhinoceros. The oxpeckers get a meal and the rhinoceros is helped by the removal of the ticks.
a)
parasitism
b)
commensalism
c)
mutualism
9.
Nesting birds often space themselves evenly from other nests. This pattern is called
a)
clumped dispersion.
b)
uniform dispersion.
c)
random dispersion
d)
scatter dispersion
10.

Which of the following is most likely to cause the greatest decrease in the species B population?

a)

A decrease in species A

b)

A decrease in species D

c)

An increase in species E

d)

A decrease in species C

11.

While decomposers are responsible for recycling all nutrients, which decomposers are responsible for cycling nitrogen specifically?

a)

Fungi

b)

Bacteria

c)

Earthworms

d)

Plants

12.

Which of the following is FALSE about the food web provided?

a)

Species D is a herbivore and carnivore

b)

Species D and B are herbivores

c)

Species A is a primary producer

d)

Species C is a secondary and tertiary consumer

13.

A new mountain range has formed by bare rock being pushed up from under the earth. Which type of organisms would you expect to be the pioneer species and what type of succession is this an example of?

a)

Lichen, Primary Succession

b)

Lichen, Secondary Succession

c)

Grasses, Primary Succession

d)

Grasses, Secondary Succession

14.

Label each level of ecological hierarchy, and put a number under each picture to order them from least inclusive to most inclusive.

15.

How much carbon is lost from respiration from the predators in this food chain? Make sure you put the units as well.

(a)  

16.

What biome is represented by the image provided? Plants have adaptations of tap roots to gain water and animals have adaptations of thick eyebrows to shade out the sun.

a)

Tundra

b)

Grassland

c)

Desert

d)

Taiga

17.

Which of the following nutrients are most often limiting factors for producers in both terrestrial soils and aquatic ecosystems? Select all that apply.

a)

Carbon

b)

Hydrogen

c)

Nitrogen

d)

Phosphorous

e)

Sulfur

18.
When taken to a new habitat, non-native plants often threaten native plants of the new habitat.  Why do they do this?
a)
Non-native plants are able to mutate rapidly
b)
Non-native  plants cause native animals to relocate
c)
Non-native plants are able to be used for medicine
d)
Non-native plants compete with native plants for resources
19.

Which of the following are ways that humans are negatively affecting the carbon cycle? Select all that apply.

a)

Deforestation is causing less atmospheric carbon dioxide being taken in by plants.

b)

Fertilizers from humans are causing leaching of carbon into soils and water systems causing algal blooms

c)

Combustion of fossil fuels is causing more atmospheric carbon dioxide being released into the atmosphere.

d)

Livestock herds are causing excess respiration and releasing too much atmospheric carbon dioxide.

e)

Building of cities is causing carbon runoff to not be able to make it to recharge the underground aquifers.

20.

What process is being shown by number 4? And what biogeochemical cycle is this image representing?

a)

Condensation, Water Cycle

b)

Transpiration, Water Cycle

c)

Combustion, Carbon Cycle

d)

Precipitation, Water Cycle