Which statements about natural selection are true? A. it always results in adaptations perfectly suited for...
Which statements about natural selection are true?
A. it always results in adaptations perfectly suited for the environment
B. Select traits that are not currently fit, but could be in the future
C. act on individuals, not species
D. is a random process
E. increases mean fitness of the population
Homework Answers
A. it always results in adaptations perfectly suited for the environment - natural selection causes the extinction of not well adapted population to the changing environmental conditions.
B. Select traits that are not currently fit, but could be in the future- selection based on eliminating the unfit individuals to the environment producing better trait for survival of future.
E. increases mean fitness of the population- average reproductive success increases on high survival rate thereby increases mean fitness.
NOT applicable options:
act on individuals, not species - it does not acts on individuals but acts on populations by changing the traits in population on eliminating unfit populations resulting in genetic variation.
is a random process- natural selection is not random process, it selects the adaptable individuals in a non- random process, random process may lead to unsucessful population.
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