Topic 5 Lesson 2

Water is a Biotic Factor.

• True

• False

Which of the following are Limiting Factors? Select all that apply.

• Water

• Diseases

• Predators

• Food

• Temperature

The number of organisms an ecosystem can support.

• Overpopulation

• Biotic Potential

• Natural Selection

• Carrying Capacity

List an Abiotic thing in this picture.

Predators are vital (important) because they balance the ecosystem.

• True

• False

all the members of one species living in the same area.

• ecosystem

• community

• population

• species

What nonliving things might you find in an ecosystem?

• Mammals, insects, and birds

• Plants, fungi, and lichen

• Rocks, air, light, and soil

• Bacteria and other microbes

What can you infer about the kangaroo rat from the fact that it thrives in the desert?

• It must be very large.

• It must eat cacti.

• It must live in a very small community.

• It must be able to survive on very little water.

Lakes and oceans are examples of aquatic ecosystems. What does "aquatic" mean?

• Saltwater

• Water-based

• Freshwater

• Filled with fish

Why can't you find scorpions in the Arctic? Choose the best answer.

• Because they can't walk on ice.

• Because they only like to catch warm-blooded prey.

• Because their stingers don't work at cold temperatures.

• Because their bodies are not adapted to life in the Arctic.