APES Unit 1 Ecosystems

Front

What is assimilation in the context of ecosystems?

Back

Assimilation is the process by which plants absorb ammonium ions and nitrate ions from the soil to create essential molecules like DNA, amino acids, and proteins.

Front

What is a potential positive consequence of increased atmospheric CO2?

Back

Plants may grow faster and produce more sugars due to increased CO2 availability.

Front

Which biome is characterized by moderate temperatures and moderate precipitation?

Back

Temperate deciduous forest.

Front

How does deforestation affect the carbon cycle?

Back

Deforestation increases the amount of CO2 in the atmosphere by reducing the number of trees that can absorb CO2.

Front

What type of relationship does a tapeworm have with its host?

Back

Parasitism, as the tapeworm feeds on the host's nutrients, harming the host.

Front

Define denitrification in ecosystems.

Back

Denitrification is the process by which bacteria convert nitrates in the soil back into nitrogen gas, releasing it into the atmosphere.

Front

What is nitrogen fixation?

Back

Nitrogen fixation is the process of converting atmospheric nitrogen (N2) into a form that plants can use, such as ammonium or nitrate.

Front

Explain the concept of mutualism with an example.

Back

Mutualism is a symbiotic relationship where both species benefit. An example is bees pollinating flowers while obtaining nectar.

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.

Front

Describe the impact of invasive species on ecosystems.

Back

Invasive species can disrupt local ecosystems by outcompeting native species for resources, leading to declines in biodiversity.