APES Semester 1 Final Exam Review

Front

What is a divergent plate boundary?

Back

A divergent plate boundary is a tectonic plate boundary where two plates move away from each other, leading to the formation of new crust, often seen at mid-ocean ridges.

Front

What is the impact of lack of genetic diversity in crops?

Back

Lack of genetic diversity in crops, such as corn, can lead to increased susceptibility to plant diseases, making them more vulnerable to threats.

Front

What is an example of evolution in action?

Back

A population of mosquitoes develops resistance to a pesticide, demonstrating natural selection and adaptation.

Front

What does carrying capacity mean in an ecosystem?

Back

Carrying capacity is the maximum number of individuals of a species that an environment can sustainably support without degrading the habitat.

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, such as the sea otter in coastal ecosystems.

Front

Define natural selection.

Back

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

Front

What is biodiversity?

Back

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

Front

Explain the concept of an ecological niche.

Back

An ecological niche is the role and position a species has in its environment, including all interactions with biotic and abiotic factors.

Front

What is the significance of food webs in ecosystems?

Back

Food webs illustrate the complex feeding relationships between organisms in an ecosystem, showing how energy and nutrients flow through the system.

Front

What are invasive species?

Back

Invasive species are non-native organisms that spread widely in a new habitat, often causing harm to native species and ecosystems.