Question

1. practice: evolution through natural selection question 4 whats intraspecific competition? question 5 how does a genotype differ from a phenotype? question 6 whats the most common type of mutation, and what impact does it have on natural selection?

Explanation:

Question 4: Intraspecific competition is the competition between individuals of the same species for limited resources like food, mates, and living space. This competition drives natural - selection as the fittest individuals are more likely to survive and reproduce.
Question 5: A genotype refers to the genetic makeup of an organism, the set of genes it possesses. A phenotype is the observable physical or biochemical characteristics of an organism, which are the result of the interaction between its genotype and the environment.
Question 6: The most common type of mutation is a point - mutation, which involves a change in a single nucleotide in the DNA sequence. In the context of natural selection, point - mutations can be neutral, harmful, or beneficial. Neutral mutations have no effect on an organism's fitness. Harmful mutations decrease an organism's fitness and are likely to be selected against. Beneficial mutations increase an organism's fitness and are more likely to be passed on to the next generation, contributing to evolution through natural selection.

Answer:

Question 4: Intraspecific competition is competition between individuals of the same species for resources.
Question 5: Genotype is an organism's genetic makeup; phenotype is its observable characteristics.
Question 6: The most common type of mutation is a point - mutation. It can be neutral, harmful, or beneficial for natural selection.