NEET BIOLOGY

GENETICS AND EVOLUTION

EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Natural selection is when what happens ____
A
having too many offsprings
B
permanent change in dna
C
nature chooses which organism survive based on their adaptations
D
the imprint or remains of an extinct organism
Explanation: 

Detailed explanation-1: -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-2: -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-3: -How does natural selection work? In natural selection, genetic mutations that are beneficial to an individual’s survival are passed on through reproduction. This results in a new generation of organisms that are more likely to survive to reproduce.

Detailed explanation-4: -Natural selection involves organisms trying to adapt. Natural selection gives organisms what they need. Humans can’t negatively impact ecosystems, because species will just evolve what they need to survive. Natural selection acts for the good of the species.

Detailed explanation-5: -Selection: Survival and Reproduction Because resources are limited, more organisms are born than can survive: some individuals will be more successful at finding food, mating or avoiding predators and will have a better chance to thrive, reproduce, and pass on, their DNA.

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