Unit 6 and 7 Review

Front

What are greenhouse gases and their role in global warming?

Back

Greenhouse gases, such as carbon dioxide, trap heat in the Earth's atmosphere, leading to an increase in global temperatures, a phenomenon known as global warming.

Front

Define parasitism in ecological terms.

Back

Parasitism is a type of symbiotic relationship where one organism benefits at the expense of another, causing harm to the host.

Front

What is the smallest unit of life that can perform all life functions?

Back

The cell is the smallest unit of life that can carry out all the functions necessary for living organisms.

Front

What does immigration refer to in population dynamics?

Back

Immigration refers to the movement of individuals into a specific area or population.

Front

How can you identify carrying capacity on a population graph?

Back

Carrying capacity is indicated on a graph where the population levels off, typically between points B and C, showing that the population has reached its maximum sustainable size.

Front

What is the significance of biodiversity in ecosystems?

Back

Biodiversity contributes to ecosystem resilience, stability, and productivity, allowing ecosystems to better withstand environmental changes.

Front

Explain the concept of ecological succession.

Back

Ecological succession is the process by which ecosystems change and develop over time, often following a disturbance, leading to a more stable community.

Front

What is the difference between immigration and emigration?

Back

Immigration is the movement into an area, while emigration is the movement out of an area.

Front

What are the main types of symbiotic relationships in ecology?

Back

The main types of symbiotic relationships are mutualism (both benefit), commensalism (one benefits, the other is unaffected), and parasitism (one benefits, the other is harmed).

Front

Define carrying capacity in the context of population ecology.

Back

Carrying capacity is the maximum number of individuals of a species that an environment can sustainably support.