GENETICS AND EVOLUTION
INHERITANCE AND VARIATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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There is no such thing as natural selection
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Natural selection is when the variation of an animal helps it survive longer and reproduce. When it reproduces, it creates another animal that can survive very long. The animals who do not have these variations do not survive.
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Natural selection is when humans breed animals to create more animals with desirable traits. For example, if someone wants a chicken that makes very large eggs, they could breed two chickens that do that.
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Natural selection is when the animal species that do not survive for long die off completely extinct.
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Detailed explanation-1: -The idea of natural selection is that traits that can be passed down allow organisms to adapt to the environment better than other organisms of the same species. This enables better survival and reproduction compared with other members of the species, leading to evolution.
Detailed explanation-2: -Natural selection is the process through which populations of living organisms adapt and change. Individuals in a population are naturally variable, meaning that they are all different in some ways. This variation means that some individuals have traits better suited to the environment than others.
Detailed explanation-3: -It’s called ‘natural selection’ because it’s a way of selecting organisms with certain traits that’s driven completely by nature, compared to ‘artificial selection’ such as when humans breed sheep to become more wooly and more tame by deliberately cross-breeding and selecting for desirable-to-humans traits.
Detailed explanation-4: -Darwin also suggested a mechanism for evolution: natural selection, in which heritable traits that help organisms survive and reproduce become more common in a population over time.
Detailed explanation-5: -Natural selection ensures only the fittest survive to pass their genes on to the next generation.