12 Questions
What percentage of types of organisms that lived are now extinct?
99%
What is the process called when solid continental plates move slowly above Earth's molten core?
Continental drift
What is the name of the semiaquatic reptile found in both South America and Africa?
Mesosaurus
How many hours of the 24-hour clock of Earth's history does the Precambrian Time occupy?
22 hours
What is the term used to describe the preserved remains or imprints of ancient organisms?
Fossils
When did the supercontinent Pangea start to break up?
175 million years ago
What is the primary reason for the existence of variation in a population?
Due to the random nature of mutations during sexual reproduction
What is the term for the process by which a population becomes suited to a specific niche?
Adaptation
What is the result of changes in the environment on biodiversity?
The destruction of habitats and creation of new ones
What is the relationship between a population's niche and its habitat?
A population's niche is a combination of its habitat and role
What is the role of crossing over in the generation of variation?
It increases genetic diversity through the shuffling of alleles
What is the primary consequence of adaptation in a population?
An increase in the population's chances of survival and reproduction
Test your knowledge on the concepts of species, niche, variation, and adaptation in evolution. Learn about the differences between individual members of a population and how variation occurs during sexual reproduction.
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