Ecology Final Review

Front

In the energy pyramid here, how much of the energy in each level gets lost as heat?

Back

90%

Front

What is the correct order of changes during primary succession?

Back

New rock, pioneer species, producers, consumers, climax community

Front

Order of plant growth in primary succession (e.g., glacier receding, lava covering land): Lichens, Shrubs, Grasses, Trees

Back

Lichens → Grasses → Shrubs → Trees

Front

How much energy is lost as heat between the trophic level of the producers and the primary consumers?

Back

90%

Front

What type of symbiosis? Hummingbirds feed on nectar from flowers. The flowers are pollinated by hummingbirds as they move from flower to flower. Options: commensalism, mutualism, parasitism, predation

Back

mutualism

Front

Examples of combustion:

Burning fossil fuels and trees

,

Decomposition

,

Diffusion

,

Cellular respiration

Back

Burning fossil fuels and trees

Front

Which of these is an abiotic factor?

• Competition between organisms for food
• Seasonal variations in precipitation and temperature
• Predators
• Parasites that affects the host

Back

Seasonal variations in precipitation and temperature

Front

Why is nitrogen limited when the atmosphere is 78% nitrogen?

Back

Not many organisms can fix nitrogen, which means turn it into a useful form

Front

What would happen if all the producers in an ecosystem suddenly died?

Back

Consumers would die, causing their numbers to decrease

Front

Uses energy from the sun to make sugars/food for the cell. Options: Mitochondria, Chloroplast, Vacuole, Lysosome

Back

Chloroplast