Unit 4 (Section 1) Review

What term is used to describe the study of relationships between organisms and their environment?

• ecosystem

• ecology

• botany

• biology

What is the correct order for the biological levels of organization?

• population, organism, community, ecosystem

• ecosystem, organism, community, population

• organism, community, population, ecosystem

• organism, population, community, ecosystem

A group of sea otters living in the coastal waters of the North Pacific is an example of a ___________.

• ecosystem

• population

• community

• biome

What term describes the number of different species living in an ecosystem?

• biogeochemical cycle

• biology

• ecology

• biodiversity

Which of the following is an example of an observational study?

• surveying an area for a specific species of flower

• conducting a field experiment to determine what is changing a predator/prey relationship in an ecosystem

• conducting a lab experiment to determine which pollutant is increasing the pH level of a nearby stream

• tracking a group of deer using GPS

Which of the following is an example of a biotic factor within an ecosystem?

• sun

• rain

• grass

• rocks

Which of the following is an example of an abiotic factor within an ecosystem?

• bacteria

• grass

• sun

• deer

What is the difference between an autotroph and a hetertroph?

• autotrophs produce energy, while heterotrophs consume other organisms for energy

• heterotrophs produce energy, while autotrophs consume other organisms for energy

• heterotrophs are producers, while autotrophs are consumers

• none of the above

Which of the following organisms can best be classified as an herbivore (primary consumer)?

• tiger

• cricket

• wolf

• sea otter

Which of the following organisms can best be classified as a carnivore (secondary consumer)?

• snake

• lion

• grass

• tree