Africa Storyline Study Guide

Front

What cycle do photosynthesis and cellular respiration primarily support?

Back

Carbon Cycle

Front

What percentage of energy is typically transferred to each level in an energy pyramid?

Back

10%

Front

What is the role of bacteria in the nitrogen cycle?

Back

Bacteria convert nitrogen gas into a usable form for plants and animals.

Front

Which two bear species are most closely related: Bear 1 and Bear 2, Bear 1 and Bear 3, or Bear 2 and Bear 3?

Back

Bear 1 and Bear 3

Front

What is the ultimate source of all energy on Earth?

Back

The Sun

Front

Define photosynthesis.

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.

Front

What is the nitrogen cycle?

Back

The nitrogen cycle is the series of processes by which nitrogen and its compounds are interconverted in the environment and in living organisms.

Front

Explain the energy pyramid concept.

Back

The energy pyramid illustrates the flow of energy through different trophic levels in an ecosystem, showing that energy decreases as it moves up the pyramid.

Front

What is the role of producers in an ecosystem?

Back

Producers, such as plants, convert solar energy into chemical energy through photosynthesis, forming the base of the food chain.