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Module 7 Part 2 Theory of Natural Selection Practice Quiz

Key Concepts:

Terms in this set (17)

What are two of Darwin's Theories?
Theory of Evolution and Theory of Natural Selection
What does a Gene control?
a trait
What are different forms of a gene?
alleles
The genetic makeup or combination of alleles is called?
a genotype
What is the observable trait of a species called?
a phenotype
How are traits passed along?
by inheritance
Explain the benefits of Natural Selection.
traits are inherited making an individual more likely to survive and reproduce offspring than those who do not have such traits
What is a population?
a group of individuals of the same species living in the same area at the same time
What is allelic frequency?
the number of times an allele occurs within a gene pool
What are some things that can cause genetic changes in an organism?
mutations, environmental changes, radiation, chemicals
When populations can't breed due to geographic separation it is called?
reproductive isolation
A gradual change over a long period of time leading to new species is called?
gradualism
What is an adaptation?
a change in structures or behaviors, often inherited, that improves an organism's ability to survive
Adaptations can be either _________ or __________.
physical, behavioral
True or False: Individuals do not get to pick and choose their adaptations
True
True or False: Adaptations are qualities not present among some individuals in a population.
False
True or False: Luck is not a factor in whether an individual in a population inherits a particular trait
False
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