Topic Test

Question 1

The Great Burdock plant’s seeds have spines on them that attach to the fur of animals that brush against it. The seed then travels with the animal until it eventually falls off, which spreads the plant’s seeds farther than the plant could have done. What type of symbiotic relationship is this?a.Mutualismb.Commensalismc.Parasitismd.Competition

Revolt · Accepted Answer

B

Question 2

Which of the following is a specialist species?a.Giant Pandasb.Horsesc.Humansd.Rabbits

Revolt · Accepted Answer

A

Question 3

Consider the following food chain:Garden plants are eaten by snails, which are eaten by birds, which are eaten by the household cat.

Revolt · Accepted Answer

A

Question 4

Which of the following is not an example of interactions between biotic and abiotic factors in an ecosystem?a.flowers opening at dawn and closing at nightb.bears hibernating in winterc.male elk fighting over a femaled.Monarch butterflies migrating to Mexico for the winter

Revolt · Accepted Answer

C

Question 5

How can an increase in biodiversity lead to an increase in ecosystem stability?a.A more biodiverse ecosystem is not subject to change.b.A more biodiverse ecosystem has a higher chance of adapting to species changes.c.A more biodiverse ecosystem has fewer species types to balance.d.A more biodiverse ecosystem is subject to fewer natural disasters.

Revolt · Accepted Answer

B

Question 6

If a stationary body of water has a constant temperature from top to bottom it is most likely a(n) _______.a.lakeb.pondc.oceand.lagoon

Revolt · Accepted Answer

B

Question 7

The inversion of terrestrial and aquatic energy pyramids is dependent upon the nature of that environment’s particular _______.a.decomposersb.climatec.primary consumersd.producers

Revolt · Accepted Answer

D

Question 8

Variation of ecological habitats within a species is characteristic of which type of diversity?a.Genetic diversityb.Ecosystem diversityc.Species diversityd.Regional diversity

Revolt · Accepted Answer

B

Question 9

Adding an organism to a food chain does not affect the other members of the food chain, but removing an organism does.

Revolt · Accepted Answer

F

Question 10

Explain which three marine habitats would have the least access to phytoplankton, and why.

Revolt · Accepted Answer

The deep sea, sea floor, and open oceans would have the least access to phytoplankton. Phytoplankton are only found near the surface of marine habitats, in the photic zone, so the ocean floor and deep sea habitats do not directly support phytoplankton. The open ocean habitat does support some phytoplankton, but the amount of surface area with access to sunlight is actually quite small relative to the volume of the habitat so it also has little access to phytoplankton.

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