Practice questions- Evolution

Flashcard
•
Science
•
8th Grade
•
Hard
Joelle Medeiros
Used 1+ times
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27 questions
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1.
FLASHCARD QUESTION
Front
An adaptation is
Back
a trait that helps an organism survive in its environment.
2.
FLASHCARD QUESTION
Front
Genetic diversity is ultimately/mainly the result of
Back
mutations.
3.
FLASHCARD QUESTION
Front
Which of the following is not an example of evolution?
- Horses becoming taller and faster over millions of years.
- All species of tortoises in the Galapagos islands descending from a common ancestor.
- Human brains becoming larger over time.
- A caterpillar going through a change into a butterfly.
Back
A caterpillar going through a change into a butterfly.
4.
FLASHCARD QUESTION
Front
Which of the following does NOT increase genetic variation? Mutations, Gene flow, Mitosis, Crossing over
Back
Mitosis
5.
FLASHCARD QUESTION
Front
A population of bacteria is treated with hand sanitizer. Because of genetic variation in the population, what is a possible outcome?
Back
Some may be resistant and survive.
6.
FLASHCARD QUESTION
Front
Process where organisms with certain traits survive and reproduce better than others.
Back
natural selection.
7.
FLASHCARD QUESTION
Front
Genes for traits that help an organism be more successful reproductively can be expected to
Back
become more common in the future.
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