CP SEM1 EXAM_03

All of life on earth exists in _________.

• a biome

• an ecosystem

• ecology

• the biosphere

Which term describes a group of different species that live together in a defined area?

• a biosphere

• a community

• an ecosystem

• a population

Which of these includes both living and nonliving things together?

• community

• ecosystem

• organism

• population

Which of these is not an abiotic factor?

• plant

• soil composition

• temperature

• wind speed

The series of steps in which a large fish eats a small fish that has eaten algae is a _________.

• food chain

• food web

• pyramid of biomass

• pyramid of numbers

How much energy typically passes from one level in a food chain to the next?

• 10%

• 50%

• 75%

• 100%

What is one way that water enters the atmosphere in the water cycle?

• condensation

• denitrification

• precipitation

• transpiration

What is the importance of the main nutrient cycles?

• to carry out life functions

• to provide drinking water

• to regulate climate

• to supply fresh air

Nutrients move through an ecosystem in _________.

• biogeochemical cycles

• ecological pyramids

• energy pyramids

• water cycles

The cell theory is _________.

• All living organisms are composed of at least one cell.

• Cells are the basic unit of structure and function in living things.

• Cells arise only from previously existing cells.

• All of the above.