South Bio Final: Ecology and Human impact

What are abiotic factors in an ecosystem?

• Living things

• Nonliving things

• Predators

• Competition

What is an example of a biotic factor?

• Soil

• Weather

• Predators

• Climate

Limiting factor: anything that could cause death in a population. Which of the following is a density dependent limiting factor?

• Disease spread

• Storms

• Soil type

• Sunlight

Limiting factor: anything that could cause death in a population. Which of the following is a density independent limiting factor?

• Disease spread

• Competition

• Storms

• Predators

Feedback mechanisms are reactions that bring conditions back to homeostasis.

• True

• False

What is the function of stomata in plants?

• Plants release water out their stomata.

• Plants absorb sunlight through their stomata.

• Plants take in nutrients through their stomata.

• Plants anchor themselves using their stomata.

In mutualism, both species benefit.

• True

• False

In commensalism, one species benefits and the other is not affected.

• True

• False

In parasitism/predation, one species benefits and the other is harmed.

• True

• False

Producers, also known as autotrophs, make their own food. Which of the following is a producer?

• Wolf

• Rabbit

• Algae

• Vulture