EOWQ_2_(W4)

Which factor is most likely to cause the number of rabbits living in an area to increase?

• less water

• lack of shelter

• fewer predators

• limited food

How do predator-prey relationship affect a population?

• They are in competition with each other
• One will go extinct
• Predators have exponential growth
• Controls size of both populations

Which of the following is a biotic factor?

• Air

• Water

• Soil

• Predators

Answer explanation

A biotic factor refers to living organisms that affect an ecosystem. The question asks which of the options is a biotic factor. Among air, water, soil, and predators, only predators are living organisms. Therefore, predators are the correct choice as they represent a biotic factor in an ecosystem.

Which of the following is an abiotic factor?

• Bacteria

• Producers

• Predators

• Air

Answer explanation

In the context of the question, an abiotic factor refers to a non-living part of an ecosystem that influences living organisms. The options provided include Bacteria, Producers, Predators, and Air. Among these, Air is the only abiotic factor as it is not a living organism. Therefore, the correct answer is Air.

Arrows in a FOOD WEB represent

• what eats what

• flow of energy

• which trophic level each organism is at

• who is a predator and who is prey

Where do Primary Producers get their energy from?

• Consumers

• The sun

• Decomposers

• Predators

What is the correct order of the Ecological Levels of Organization? (From smallest level to largest)

• Population-Community-Organism-Ecosystem-Biosphere

• Biosphere-Ecosystem-Organism-Population-Community

• Organism-Population-Community-Ecosystem-Biosphere

PICK TWO: What type of organisms make their own food?

• Autotrophs

• Hetertrophs

• Primary Producer

• Consumers

A herd of elephants represent a

• Community

• Ecosystem

• Organism

• Population

After the first trophic level - what percentage of energy is available  to each of the following levels?

• 100%
• 90%
• 10%
• 8.5%