True, Natural selection is the process by which individuals better adapted to their environment are more likely to survive and reproduce., Overproduction means species produce more offspring than can survive., Variation refers to differences in traits among members of a population., Competition occurs because resources such as food, water, and shelter are limited., Helpful hereditary traits can increase in a population over generations., Mutations are changes in genetic material., Only mutations in reproductive cells can be inherited., Natural selection acts only on traits controlled by genes., Environmental changes can influence which traits are helpful for survival., Gregor Mendel showed that parents pass genes to their offspring., Epigenetics studies chemical changes that turn genes on or off without changing the DNA sequence., Individuals with helpful adaptations are more likely to reproduce., Alfred Russel Wallace independently developed the idea of natural selection., Gene expression determines how a cell functions., Over many generations, favorable traits may accumulate in a population., False, Natural selection allows all offspring in a population to survive., Competition occurs because resources are unlimited., Mutations in body cells are passed to offspring., Individuals change their genes during their lifetime in order to survive., Artificial selection and natural selection are exactly the same process., Natural selection creates traits because organisms need them., Overproduction decreases competition among organisms., Environmental changes have no effect on survival., All mutations are harmful to organisms., Natural selection causes immediate change within a single generation..

Natural Selection

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