Science Chapter 5 Review

Birds eat insects. If someone spreads pesticide, which is MOST likely to happen?

• bird population will increase

• bird population will decrease

• bird population will increase, then decrease

• bird population will decrease, then increase

Which biome is home to more species than any other biome?

• taiga

• deciduous forest

• grassland

• tropical rainforest

Which adaptation BEST helps the elk survive in the taiga biome?

• thick fur

• change of color

• large antlers

• winter hibernation

Which is the source of MUCH of the oxygen in the atmosphere?

• plants

• volcanoes

• plankton in the oceans

• trucks and cars

What role do decomposers play in an ecosystem?

• break down music into basic notes

• break down waste and dead matter

• provide nutrients for carnivores to make energy

• provide nutrients for omnivores to make energy

Identify 3 nonliving parts of an ecoystem

• sunlight, temperature, soil

• precipitation, temperature, plants

• sunlight, rain, animals

• temperature, logs, sand

How do nonliving parts impact different organisms? Which is NOT an answer.

• Different organisms need different amounts of sun and water

• All organisms need the same amount of nonliving things

• Different organisms can survive in different temperatures

• Population increases if organisms have the right amount

What are 2 ways wetlands help the environment?

• Protect inlands from ocean waves and pollute water

• Floods and pollutes the land

• Filters (or cleans) water and dries up land

• Protect inlands from ocean waves and filters (cleans) water

What is a producer in nature?

• a plant that performs photosynthesis to make food

• an animal that performs photosynthesis to make food

• an animal that eats other organisms for energy

• a person who helps create movies or music

What is a niche?

• An annoying place you cannot reach to scratch.

• A role, or job, that a species has in an ecosystem.

• The number of a certain species in an area

• A place that a species lives.