Predation and Competition

Interactions in Ecosystems

Learning Target:

I can identify the differences between competition and predation.

I can identify the role adaptations and population sizes are affected by these interactions.

Open Ended

What is an adaptation?

Open Ended

How do the animal's adaptations help it survive?

Open Ended

Identify 2 examples of competition in your life.

Competition

The struggle between two organisms who share the same niche.

Multiple Choice

What is a niche?

• The role of an organism in its habitat.

• A crevice in a wall

• A type of fish in an ecosystem

• A small market or store

Multiple Choice

Competition in an ecosystem is ...

• the struggle for organisms to survive using same limited resources

• the struggle for organisms to survive using different resources

• The process of comparing two or more things to determine which is better.

• The act of working together to achieve a common goal.

Match

Match the predator/prey relationships below.

sea snake

lion

fly

moose

gecko

• sea snake

• lion

• fly

• moose

• gecko

Multiple Choice

Which of the following could represent adaptations of prey?

• protective coverings, warning coloration, camouflage

• Migration, hibernation, increased speed

• sharp teeth and claws

• hibernation

Multiple Choice

Which of the following could represent adaptations of predators?

• sharp teeth, claws, sharp senses, fast runner

• Long tail, camouflage, web spinning, hibernation

• Flight, camouflage, hibernation, venom

• Camouflage, hibernation, burrowing, bioluminescence

Multiple Choice

Which term best describes two predators living in the same habitat who feed on the same prey?

• coexistence

• competition

• mutualism

Multiple Choice

A pride of lions stalks, tackles, and kills an antelope. Which is best being demonstrated?

• predation

• mutualism

• cooperation

Multiple Choice

An animal that is hunted and eaten for food is a 

• predator

• prey

• population

Multiple Choice

What type of interaction does this picture represent? (All of the animals are drinking from the same small watering hole)

• parasitism

• Commensalism

• Competition

• Mutualism

Multiple Choice

Nonliving things found in an ecosystem.

• factories

• factor trees

• biotic factors

• abiotic factors

Multiple Choice

A living or once-living organisms in an ecosystem is a

• population

• biotic factor

• abiotic factor

• community