Ecology Review

Multiple Choice

DO NOW: Biotic factors are

• Living

• nonliving

Multiple Choice

DO NOW:Abiotic factors

• living

• nonliving

Multiple Choice

DO NOW: Water would be an example of:

• Biotic

• abiotic

Multiple Choice

DO NOW: What is the difference between the biotic and abiotic factors?

• Biotic factors are living things and abiotic factors are nonliving things.

• Biotic factors are nonliving things and abiotic factors are living things.

Multiple Choice

DO NOW: What is a example of a abiotic factor?

• Panda

• Bacteria

• Butterfly

• Weather

Multiple Choice

The arrows in a food chain or web represents what?

• They point to the organism that is being eaten.
• It shows how sunlight flows within an ecosystem.
• They show what direction the energy is flowing between organisms. 
• They represent how water is transferred within a habitat.

Multiple Choice

Trophic levels are represented by 

• squares
• circles
• pyramids
• lines

Multiple Choice

The first organism in a food chain is ALWAYS a:

• producer

• consumer

• decomposer

• Any of the above

Multiple Choice

The grass is on which trophic level?

• 1st

• 2nd

• 3rd

• 4th

Multiple Choice

The word "primary" means "first."

If that's true, what does primary consumer mean?

Hint: look carefully at the food chain!

• the first organism in a food chain

• the first organism that consumes something else for energy

Multiple Choice

What kind of organisms are usually at the top of the food chain?

• producers

• herbivores

• omnivores

• carnivores

Multiple Choice

How much energy is transferred between trophic levels?

• 25%

• 20%

• 10%

• 90%

Multiple Choice

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

• 80%
• 90%
• 10%
• 20%

Multiple Choice

A lichen is a combination of two organisms, an alga and a fungus. The fungus gets its food from the alga while the alga gets water from the fungus. This is an example of which relationship?

• competition

• mutualism

• commensalism

• parasitism

Multiple Choice

Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 

• parasitism
• commensalism
• mutualism

Multiple Choice

 The stork uses it saw-like bill to cut up the dead animals it eats. As a result, the dead animal carcass is accessible to some bees for food and egg laying. The relationship neither harms nor benefits the stork.

• parasitism
• commensalism
• mutualism

Multiple Choice

Which of the following shows the symbiotic relationship between the Rodent and the Bird?

• Mutualism

• Commensalism

• Competition

Multiple Choice

Hermit Crabs live in shells made and then abandoned by snails.

• Commensalism

• Parasitism

• Competition

Multiple Choice

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

• commensalism
• mutualism
• parasitism
• predation

Multiple Choice

When a mosquito bites you, you are the __________ and the mosquito is the  ____________.

• host, hostess
• parasite, host
• host, parasite
• prey, predator

Multiple Choice

Which of the following is correct about the carbon cycle?

• Photosynthesis of plant life is one of the main producers of CO2

• Burning fossil fuels decreases atmospheric CO2

• Glucose is a form of carbon storage in plants

• Cellular respiration is a process that decreases CO2

Multiple Choice

Which is a true statement about the Nitrogen Cycle?

• The burning of fossil fuels has no effect on the Nitrogen Cycle

• Bacteria are responsible for converting Nitrogen into a form that can be used by plants

• Nitrogen is not a very important element to living organisms

• Nitrogen fixing takes place during photosynthesis