Biology EOC Review - Ecology

Front

What is a decomposer?

Back

An organism that breaks down dead or decaying organic material, returning nutrients to the ecosystem. Common examples include bacteria and fungi.

Front

What is primary succession?

Back

The process of ecological change that occurs in an area where no soil exists, starting from bare rock and leading to a stable ecosystem.

Front

List the stages of primary succession in order.

Back

1. Bare rock 2. Lichens 3. Small annual plants 4. Perennial herbs and grasses 5. Shade-intolerant trees 6. Shade-tolerant trees.

Front

What is the impact of desalination on marine ecosystems?

Back

Desalination can alter ocean salt levels, leading to loss of species and unbalanced populations in marine food webs.

Front

What is genetic diversity?

Back

The variety of genes within a species, which is crucial for a population's ability to adapt to environmental changes.

Front

What is inbreeding?

Back

The mating of closely related individuals, which can lead to a reduction in genetic diversity and increased vulnerability to diseases.

Front

What is an ecosystem?

Back

A community of living organisms interacting with their physical environment, including both biotic and abiotic factors.

Front

Define biotic factors.

Back

Living components of an ecosystem, such as plants, animals, and microorganisms.

Front

Define abiotic factors.

Back

Non-living components of an ecosystem, such as water, sunlight, temperature, and minerals.

Front

What is a food web?

Back

A complex network of feeding relationships among organisms in an ecosystem, illustrating how energy and nutrients flow.