Adaptations and Natural Selection
Grade 7•45 minutes•8.LS.1 Diversity of species, a result of variation of
traits, occurs through the process of evolution and
extinction over many generations. The fossil
records provide evidence that changes have
occurred in number and types of species.
Learning Objective
I can analyze how fossil records provide evidence of changes in the number and types of species over generations due to evolution and extinction.
Practice Questions
This lesson includes 7 practice questions to reinforce learning.
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1. Describe the concept of "survival of the fittest" as it relates to natural selection, using an example from the video.
2. Explain how a specific trait, like the size of elephant tusks, can become more common in a population over time through natural selection.
3. How does the adaptation of camouflage in cheetahs increase their chances of survival and reproduction?
...and 4 more questions
Educational Video
Survival of the Fittest
Next Generation Science