Ecology 6 : Population Density & Geochemical Cycles

Front

Where is the greatest amount of freshwater stored?

Back

Glaciers store the greatest amount of freshwater on Earth.

Front

What ions cause eutrophication in aquatic ecosystems?

Back

Eutrophication is caused by the accumulation of nitrate (NO3-1) and phosphate (PO4-3) ions.

Front

What is the process that returns CO2 to the atmosphere through the reaction C6H12O6 + 6O2 → 6CO2 + 6H2O?

Back

The process is called respiration.

Front

What does a population of 27,852 mule deer in Nebraska in 2019 exemplify?

Back

This is an example of a population.

Front

What term describes the spatial distribution of individuals in a population?

Back

The term is dispersion.

Front

What is the definition of population density?

Back

Population density is the number of individuals per unit area or volume.

Front

What are the three main types of dispersion patterns in ecology?

Back

The three main types of dispersion patterns are clumped, uniform, and random.

Front

What is the significance of biogeochemical cycles in ecosystems?

Back

Biogeochemical cycles are essential for recycling nutrients and maintaining ecosystem health.

Front

What role do decomposers play in the ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil.

Front

How does human activity contribute to eutrophication?

Back

Human activities, such as agricultural runoff and wastewater discharge, increase nutrient levels in water bodies, leading to eutrophication.