Test: Week 1 Review

Front

What is biodiversity?

Back

Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of different species, genetic diversity, and the variety of ecosystems.

Front

Which ecosystem has the highest biodiversity?

Back

An ecosystem with a greater number of different species and a larger population of individuals typically has higher biodiversity.

Front

Define ecosystem.

Back

An ecosystem is a community of living organisms interacting with their physical environment, including both biotic (living) and abiotic (non-living) components.

Front

What factors contribute to biodiversity?

Back

Factors include habitat diversity, climate, availability of resources, and human activities.

Front

How does biodiversity benefit ecosystems?

Back

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

Front

What is a keystone species?

Back

A keystone species is a species that has a disproportionately large effect on its environment relative to its abundance, playing a critical role in maintaining the structure of an ecological community.

Front

What is the difference between species richness and species evenness?

Back

Species richness refers to the number of different species in an ecosystem, while species evenness measures how evenly individuals are distributed among those species.

Front

What is an example of a biodiversity hotspot?

Back

A biodiversity hotspot is a region with a significant level of endemic species that is under threat from human activities, such as the Amazon rainforest.

Front

What role do humans play in biodiversity?

Back

Humans can both positively and negatively impact biodiversity through conservation efforts or activities that lead to habitat destruction and pollution.

Front

What is habitat fragmentation?

Back

Habitat fragmentation is the process by which large habitats are broken into smaller, isolated patches, often due to human activities, which can threaten species survival.