Biology Chapter: Habitat and Adaptation

What are abiotic factors in a habitat?

How does a mutation become an adaptation?

What does a niche represent in an ecosystem?

In the tolerance range graph, what does the central peak indicate?

What happens to a species population when an abiotic factor exceeds its tolerance range?

What do marginal niches represent on the tolerance range graph?

Which factor is identified as a biotic component of a habitat?

What is the process called when mutations contribute to the evolution of a species?

Habitat Requirements for Species

A habitat is the place where a species lives, including both biotic (living) and abiotic (non-living) factors
Biotic factors include plants, animals, bacteria, and waste products
Abiotic factors include water, soil type, and climate
Every species has a tolerance range for abiotic factors; populations die outside this range
The optimal value of an abiotic factor is where the largest number of individuals of a species is found

Mutations and Adaptation

Mutations create differences in the DNA of individuals
An adaptation is a mutation that enhances survival in a specific habitat
Organisms with adaptations have higher fitness (more offspring)
This increased rate of organisms with the adaptation leads to an increase in the likelihood of the adaptation continuing
Natural selection is the process where these adaptations become more common over time

Species Niches

A niche describes the complex interactions of a species within its environment, including its role or function
A species' niche can be seen as the role or function it has in the ecosystem
Different species can co-exist in the same ecosystem by occupying different niches, avoiding competition

Explore the essential concepts of habitat requirements, mutations, and adaptation in this biology quiz. Understand how biotic and abiotic factors influence species survival and learn about the role of natural selection in the evolution of adaptations. Test your knowledge and enhance your understanding of ecological niches and species interactions.