AP BIOLOGY

EVOLUTION

MODERN THEORY OF EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
why is variation important?
A
It helps the animals vary
B
It makes animals the same so they all can survive
C
It helps so they can’t get sick
D
It is an advantages for animals that can help in natural selection
Explanation: 

Detailed explanation-1: -This variation means that some individuals have traits better suited to the environment than others. Individuals with adaptive traits-traits that give them some advantage-are more likely to survive and reproduce. These individuals then pass the adaptive traits on to their offspring.

Detailed explanation-2: -Variation within species affects how organisms interact with each other and their surrounding environment. For example, the size of a fish’s mouth, known as its gape, varies and determines the size of prey it can eat. Much of the time, traits like fish gape are adaptive; they help organisms live in a changing world.

Detailed explanation-3: -Genetic variation describes naturally occurring genetic differences among individuals of the same species. This variation permits flexibility and survival of a population in the face of changing environmental circumstances.

Detailed explanation-4: -It helps a species to survive, it also helps us to determine who is who, it helps organisms to adapt to their environment as well as to changes which do occur in the environment, however it also helps a species to emerge strong if favoured by natural selection.

Detailed explanation-5: -Survival advantage is the major advantage of natural selection in a population. Natural selection favours the fittest organism.

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