Copy of 4.5 Evolution and Extinction

Multiple Choice

Which level of ecology includes all living and nonliving components in a particular area?

• Organism

• Population

• Community

• Ecosystem

Fill in the Blanks

A group of organisms with similar traits that can produce healthy, fertile offspring is called a

.

Multiple Choice

Which of the following are considered gene variations within a population?

• Traits

• Alleles

• Species

• Gene pool

Open Ended

Describe how changes in the environment can lead to evolution or extinction of species.

Multiple Choice

What are two factors that contribute to species survival according to the lesson?

• Genetic diversity and population size

• Climate and food availability

• Predators and prey

• Migration and mutation

Open Ended

Explain how genetic diversity within a population can impact the survival of a species.

Multiple Choice

What is the main difference between acclimation and adaptation?

• Acclimation is an individual response, while adaptation is a group response.

• Acclimation leads to new species, while adaptation does not.

• Adaptation is temporary, while acclimation is permanent.

• Adaptation only occurs in plants, while acclimation occurs in animals.

Fill in the Blanks

A

niche is the full range of resources a species can use based on its biology and traits.

Open Ended

Describe how resource partitioning can allow similar species to coexist in the same habitat.

Open Ended

Explain how competition can affect the realized niche of a species in an ecosystem.

Multiple Choice

What did Darwin observe about the finches on the Galapagos Islands?

• They all originated from a single species.

• They were all the same species.

• They did not compete for resources.

• They had no variation in traits.

Multiple Select

Which of the following statements about Charles Darwin’s theory are correct?

• It is based on the idea of 'descent with modification.'

• It suggests all species are unrelated.

• It was influenced by observations of finches.

• It claims species never change over time.

Multiple Choice

Which of the following is NOT one of the four mechanisms of evolution?

• Mutation

• Gene flow

• Natural selection

• Photosynthesis

Open Ended

Explain how mutation and gene flow contribute to genetic variation within a population.

Multiple Select

Which of the following statements about genetic drift are correct?

• It can cause loss of genetic variation in a population.

• It always increases genetic diversity.

• It occurs due to random events.

• It can lead to changes in a species if individuals fail to reproduce.

Fill in the Blanks

Natural selection is commonly referred to as 'Survival of the

'.

Fill in the Blanks

Speciation is the emergence of new species as a result of small changes over time that lead to distinct

traits and/or ecological niches.

Multiple Choice

Which of the following is an example of coevolution?

• Bees and flowers

• Dogs and cats

• Humans and computers

• Fish and water

Open Ended

After learning about evolution and extinction in ecosystem ecology, what questions do you still have or what would you like to know more about?