Ecology Exam Review

A group of the same organisms living together in the same place at the same time.

• community

• population

• ecosystem

• organism

What are the ecological levels of organization from smallest to the largest?

• organism, population, community, ecosystem, biosphere

• organism, community, population, ecosystem, biosphere

• organism, population, community, ecosystem, ecosphere

• organism, community, population, ecosystem, ecosphere

A shark and remora fish can be found swimming together in the ocean. The remoras may attach themselves to the shark as it swims through the water. When the shark finds food, the remoras eat some of the food not consumed by the shark. The shark neither benefits nor is harmed.

• mutualism

• parasitism

• commensalism

• facilitation

Termites eat wood, but cannot break down wood on their own. They must have a small microbe in their intestines to break it down for them. The microbe in turn receives food and shelter.

• mutualism

• parasitism

• commensalism

• facilitation

A living (or once-living) organism in an ecosystem is classified as which type of factor?

• abiotic

• biotic

• not enough information is given

• ecological

Which of the following is NOT an abiotic factor?

• sun

• soil

• grass

• temperature

Groups of different populations along with their abiotic factors.

• population

• ecosystem

• biosphere

• community

Groups of different populations living together in the same place at the same time.

• ecosystem

• population

• organism

• community

The smallest unit of life that can sustain itself.

• organism

• population

• community

• biosphere

A niche ________________.

• is the function that an organism performs in the food web of that community.

• includes everything else the organism does and needs in its environment.

• is specific to each individual animal and plant.

• all of these are legit!