Biology Semester 1 Final Practice Test

Front

What are the trophic levels occupied by a primary consumer?

Back

Primary consumers are organisms that eat primary producers (autotrophs) and are typically herbivores.

Front

What is the hydrosphere?

Back

The hydrosphere is the system that includes all the water on or near the Earth's surface, including oceans, rivers, lakes, and groundwater.

Front

What do nutrient cycles have in common?

Back

Nutrient cycles involve the movement of matter through abiotic (non-living) and biotic (living) parts of ecosystems, and matter is recycled and reused.

Front

What is the relationship between carbon dioxide concentrations and temperatures based on historical data?

Back

As carbon dioxide concentrations increase, temperatures tend to increase.

Front

What does carrying capacity refer to in an ecosystem?

Back

Carrying capacity is the maximum number of individuals of a species that an environment can support sustainably.

Front

Define autotrophs.

Back

Autotrophs are organisms that produce their own food from sunlight or chemical energy, such as plants and some bacteria.

Front

Define heterotrophs.

Back

Heterotrophs are organisms that cannot produce their own food and must consume other organisms for energy, such as animals and fungi.

Front

What is a decomposer?

Back

Decomposers are organisms that break down dead or decaying organic material, returning nutrients to the soil.

Front

What is the difference between a primary consumer and a secondary consumer?

Back

Primary consumers eat producers (plants), while secondary consumers eat primary consumers.

Front

What is the biosphere?

Back

The biosphere is the global sum of all ecosystems, where life exists, including land, water, and the atmosphere.