Ecosystems - End of Unit Assessment

What is a habitat?

• The name for a group of organisms.
• The name of a living thing.
• A place where an animal or plant lives.

Is a river a biotic or abiotic component of an ecosystem?

• biotic
• abiotic

Can you identify the biotic and abiotic components of this ecosystem?

When do all animals, solitary or group, need to spend time together?

• When they hunt for food.
• When they mate.
• When they find a place to live.

Name three advantages of group living.

Animal groups are __________ than solitary animals.

• Safer from the spread of infections
• Less likely to compete for mates
• More easily spotted by predators

Name three ways a polar bear is adapted to the arctic environment.

Which of these are reasons animals migrate. Put a check mark in those that apply.

• changes in temperature
• fighting within their group
• looking for food
• find a mate

Can you figure out what stealthy animal is camouflaged in this photo? Why do you think they are using camouflage? To hide or to hunt?

What is a fossil?

• The remains of dead plants and animals
• A habitat
• A food source