what is natural selection?\na process that selects variations that help with survival and that spreads the…
what is natural selection?\na process that selects variations that help with survival and that spreads the variations to more offspring\na process through which nature selects an individual within a population for extinction\na process that causes all populations to gradually increase in size\na process that causes random variations to appear in the offspring of every generation
Answer
Brief Explanations:
Natural selection is a fundamental concept in biology. It is the process by which organisms with traits that are advantageous for survival and reproduction are more likely to pass on their genes to the next generation. This leads to the spread of beneficial variations within a population over time.
- Option 1: This correctly describes natural selection as it involves the selection of survival - enhancing variations and their spread to offspring.
- Option 2: Natural selection is not about selecting for extinction of an individual. Instead, it is about the success of certain traits in a population.
- Option 3: Natural selection does not necessarily cause all populations to increase in size. Population size can be affected by many factors such as resource availability, and natural selection acts on the traits within a population, not directly on population size in a one - size - fits - all "increase" manner.
- Option 4: Random variations (mutations) occur, but natural selection acts on these variations (selecting the beneficial ones), not causing the random variations themselves.
Answer:
a process that selects variations that help with survival and that spreads the variations to more offspring