EOC Released Test (Biology)

Front

What is the impact of introducing a new species into an ecosystem?

Back

Introducing a new species can increase competition for food resources, potentially disrupting the balance of the ecosystem.

Front

How do environmental changes, like drought, affect species survival?

Back

Environmental changes can lead to food scarcity, causing species to struggle for survival and only those that can adapt will thrive.

Front

What provides the most reliable evidence for common ancestry among species?

Back

Nucleotide sequences provide the most reliable evidence for common ancestry among species.

Front

What is an example of the carbon cycle?

Back

A plant uses carbon dioxide for photosynthesis and is then consumed by an animal, illustrating the cycling of carbon.

Front

What can be inferred from the variation in giraffe neck lengths?

Back

The variation in neck lengths suggests that the trait is controlled by multiple genes.

Front

Define competition in an ecological context.

Back

Competition occurs when two or more species or individuals vie for the same resources in an ecosystem.

Front

What is natural selection?

Back

Natural selection is the process where organisms better adapted to their environment tend to survive and produce more offspring.

Front

Explain the concept of adaptation.

Back

Adaptation is a trait that enhances an organism's ability to survive and reproduce in its environment.

Front

What is the role of photosynthesis in the carbon cycle?

Back

Photosynthesis allows plants to convert carbon dioxide into organic compounds, playing a crucial role in the carbon cycle.

Front

What is genetic diversity and why is it important?

Back

Genetic diversity refers to the variety of genes within a species, which is important for resilience to environmental changes.