FQ 17-18 pgs 85-92 12/3

Front

What is a density-independent population regulator?

Back

A factor that affects population size regardless of the population's density, such as extreme weather.

Front

What percentage of the Earth’s atmosphere is nitrogen?

Back

78%.

Front

What human practice negatively impacts the carbon cycle?

Back

Slash-and-burn agriculture.

Front

What are biogeochemical cycles?

Back

The movement of elements throughout the biosphere.

Front

Which process does NOT drive the carbon cycle?

Back

Evapotranspiration.

Front

Define photosynthesis.

Back

The process by which green plants use sunlight to synthesize foods with the help of chlorophyll.

Front

What is decomposition?

Back

The process of breaking down organic matter, returning nutrients to the soil.

Front

Explain the term 'carbon cycle'.

Back

The series of processes by which carbon compounds are interconverted in the environment.

Front

What is the role of respiration in the carbon cycle?

Back

It releases carbon dioxide back into the atmosphere as organisms break down glucose for energy.

Front

Define extreme weather in the context of population regulation.

Back

Severe weather events that can drastically affect population sizes, such as hurricanes or droughts.