Unit 13: Ecology

Click to begin

Which of the following is an abiotic factor in a desert ecosystem?

A.) competition B.) scavengers

C.) scarcity of food D.) lack of precipitation

L

D.) correct answer

F

A.) circadian rhythm B.) parasitism

C.) mutualism D.) commensalism

L F

C.) correct answer

Fish in the ocean will travel long distances to have shrimp climb on their mouths and gill

slits to remove parasites. This behavior

demonstrates _____.

A.) ecosystem B.) population

C.) community D.) greenhouse effect

L F

B.) correct answer

All of the freshwater trout in a river represent a (n) _____.

A.) J-shaped B.) S-shaped

C.) exponential D.) unlimited

L F

A population established in an ecosystem would demonstrate _____ growth.

B.) correct answer

A.) community B.) symbiotic

C.) population D.) species

L F

All of the living things in an area are referred to as a _____.

A.) correct answer

A.) predation B.) air temperature

C.) soil composition D.) rainfall

L F

Which of the following would be considered a biotic factor that limits

the growth of a population?

A.) correct answer

A.) owl B.) mouse

C.) snake D.) decomposer

L F

Which of the following would have the most amount of energy in its

community?

B.) correct answer

A.) nitrogen fixation B.) fertilizer

C.) animal wastes D.) all of the above

L F

Which of the following adds nitrogen to the soil?

D.) correct answer

A.) primary consumer B.) secondary consumer

C.) primary producer D.) secondary producer

L F

A rabbit population would be considered _____ in its ecosystem.

A.) correct answer

A.) global warming B.) deforestation

C.) more atmospheric carbon dioxide

D.) exponential increase in the human population

L F

Which of the following is most likely the cause of the others?

D.) correct answer

A.) senior citizens B.) children

C.) single parents D.) adults

L F

The fastest growing population would be the population with the highest number of

_____.

B.) correct answer

A.) vegetation would decrease B.) rainfall would decrease

C.) rabbits would increase D.) hawks would increase

L F

If the number of foxes in an area decreased from habitat loss, which of the following would

most likely happen first?

C.) correct answer

A.) 0% B.) 10%

C.) 50% D.) 100%

L F

How much energy is passed from grass to grasshoppers during feeding?

B.) correct answer

A.) primary producers B.) 1st order heterotroph

C.) primary consumers D.) 3rd order heterotroph

L F

In a food web, hawks are most likely _____.

D.) correct answer

A.) heavy rainfall B.) forest fires

C.) predation D.) drought

L F

Which of the following is a density-dependent limiting factor?

C.) correct answer

Congratulations!Thank-you for playing…