Goal 2 : Ecology

the living and nonliving things present in an ecosystem that prevent a population from growing beyond a certain size, including food, water, available mates, and predators

• ecology

• limiting factor

• biotic factor

• abiotic factor

all nonliving things in an ecosystem, including water, rocks, sunlight, weather, natural disasters, oxygen, space, hunting, and shelter

• ecology

• limiting factor

• biotic factor

• abiotic factor

Which of the following would INCREASE the carrying capacity of an ecosystem?

• increase in predators
• disease
• increase in available food
• drought

What is an autotroph?

• can synthesize their own food

• are dependent on other organisms for their food

• decomposer

The rabbit in this food web would be considered a:

• Decomposer
• Producer
• Secondary Consumer
• Primary Consumer

What is the term for each step in the transfer of energy and matter within a biological community?

• energy path
• food web
• trophic level
• food pyramid

The amount of energy that usually transfers from one trophic level to the next...

• 10%
• 20%
• 80%
• 50%

An ant lives on an acacia tree- the ant protects the tree and the tree feeds the ant. What kind of relationship is this?

• Mutualism

• Commensalism

• Parasitism

• Predation

How do decomposers help plants?

• The eat other insects that might eat the plants.
• The do not compete against the plants for food.
• They scare away potential predators of plants. 
• The release nutrients into the soil that plants use to grow.

Photosynthesis is an important part of the ______ cycle

• Carbon

• Water

• Phosphorus

• Nitrogen