Review Questions
|
|
| 1. |
How
is an ecosystem organized, from least to most comprehensive? |
| (A) |
Individual, community, population, biome |
| (B) |
Individual, population, community, biome |
| (C) |
Individual, population, niche, community |
| (D) |
Individual, niche, community, population |
| (E) |
Individual, population, biome, niche |
|
|
|
| 2. |
Why
is energy lost as it moves from producers to primary consumers? |
| (A) |
Saprophytic activity |
| (B) |
Biomass decreases |
| (C) |
Secondary consumers eat primary consumers |
| (D) |
Respiration and metabolic activity |
| (E) |
None of the above |
|
|
|
| 3. |
Which
of the following organisms participate in the nitrogen cycle? |
| (A) |
Denitrifying bacteria |
| (B) |
Chemosynthetic bacteria |
| (C) |
Saprophytes |
| (D) |
All of the above |
| (E) |
None of the above |
|
|
|
| 4. |
When
resources are abundant and the environment is stable, which reproductive
strategy is most effective? |
| (A) |
Sexual reproduction, with intense parental care and slow
development |
| (B) |
Sexual reproduction, with slight parental care and quick
development |
| (C) |
Parthenogenesis |
| (D) |
All of the above |
| (E) |
None of the above |
|
|
|
| 5. |
Why
might growth slow from an exponential rate in a population of sheep? |
| (A) |
Disease |
| (B) |
Lack of space |
| (C) |
Wolves |
| (D) |
All of the above |
| (E) |
None of the above |
|
|
|
| 6. |
What
is a relationship in which two organisms both benefit from their
association? |
| (A) |
Symbiosis |
| (B) |
Mutualism |
| (C) |
Commensalism |
| (D) |
Parasitism |
| (E) |
Competition |
|
|
|
| 7. |
Which
is true of ecological succession? |
| (A) |
Pioneer species move into new communities first. |
| (B) |
Climax communities have lower total biomass than preceding
communities. |
| (C) |
Species diversity is greatest in the early stages of succession. |
| (D) |
Climax communities shift constantly. |
| (E) |
All of the above |
|
|
|
| 8. |
Tundra
is characterized by |
| (A) |
trees such as beech, maple, and oak |
| (B) |
high biodiversity |
| (C) |
barrenness |
| (D) |
a short growing season following rainfall |
| (E) |
none of the above |
|
|
|
| 9. |
Which
of the following releases carbon dioxide into the atmosphere? |
| (A) |
Animal consumption of producers |
| (B) |
Photosynthesis |
| (C) |
Chemosynthesis |
| (D) |
Bacterial decay |
| (E) |
None of the above |
|
|
|
| 10. |
In
a plains community, the population with greatest biomass would be |
| (A) |
hawks |
| (B) |
foxes |
| (C) |
prairie dogs |
| (D) |
grasses |
| (E) |
beetles |
|
|
|
