'22-23 APES Midterm Review

Front

Why are there typically far fewer individual apex predators in a terrestrial ecosystem compared to individual primary consumers?

Back

There isn't sufficient energy available at higher trophic levels.

Front

An aerosol is the same thing as a gas.

Back

False

Front

What causes the movement of tectonic plates?

Back

Convection currents in the Asthenosphere.

Front

What is the texture of a soil sample that is 60% clay, 30% silt, and 10% sand?

Back

Clay.

Front

Which layer is known as topsoil?

Back

Horizon A.

Front

Define apex predator.

Back

An apex predator is a predator at the top of a food chain, with no natural predators of its own.

Front

What is the role of primary consumers in an ecosystem?

Back

Primary consumers are organisms that eat primary producers (plants) and are essential for energy transfer in the food chain.

Front

Explain the concept of trophic levels.

Back

Trophic levels represent the hierarchical levels in an ecosystem, where each level is defined by how organisms obtain energy.

Front

What is the difference between an aerosol and a gas?

Back

An aerosol is a suspension of fine solid particles or liquid droplets in a gas, while a gas is a state of matter without a fixed shape or volume.

Front

What is soil texture and why is it important?

Back

Soil texture refers to the proportion of sand, silt, and clay in soil, affecting water retention, drainage, and nutrient availability.