For biological evolution to occur by way of natural selection, the trait being selected for need NOT:
A. be heritable
B. vary among individuals
C. increase an individual's lifespan
D. increase an individual's reproductive success
Answer (3)
The answer is c. Natural selection is when inheritable traits that they need to survive is passed down to the next generation. Biological revolution changes the environment so the organism's offspring has to change with it through genetic variations. If you increase it's life span than you may not have genetic variation over a period of time.
C) In the process of evolution by natural selection, a trait that is being selected does not necessarily need to increase an individual's lifespan.
This is because natural selection acts on traits that increase an organism's reproductive success rather than directly on traits that contribute to longevity. A trait must be heritable, vary among individuals, and provide some reproductive advantage—these are the conditions that allow natural selection to drive evolution.
The answer is C, increase an individual's lifespan. For natural selection to occur, a trait must be heritable and vary among individuals, primarily helping to enhance reproductive success. Lifespan is not a necessary condition for natural selection to take effect.
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