Ecology Part 2

Which of the following is made up of multiple populations with no abiotic factors

• Community

• Ecosystem

• Biome

• Organism

Keystone species do what for biodiversity?

• Keep it high

• Make it low

• Keep out invasive species

• Nothing

Which organism would be most affected by biomagnification?

• Grasshopper

• Mouse

• Snake

• Eagle

Pollutants like mercury can increase in concentration as they move up the food chain. This is called:

• Eutrophication

• Fossil Fuels

• Biomagnification

• Sublimation

An increase in prey will most likely lead to

• A decrease in predators

• An increase in predators

• A increase in producers

• An increase in sunlight

If there are no limiting factors, a population is likely experiencing _ growth

• Exponential

• Logistic

Competition for resources causes a population to shift from what to what growth.

• From exponential to exponential

• From exponential to logistic

• From logistic to logistic

• From logistic to exponential

Which line slows at the carrying capacity, and is therefore logistic growth

• A

• B

What is unlikely to be a limiting factor for plants growing in the desert

• Access to light

• Access to water

• Drought

• Overheating

A limiting factor for plants growing in the desert might be

• Access to soil

• Access to light

• Access to water

• Access to a food supply