Question

1. what is natural selection?

a. a method of breeding animals
b. a process that helps species adapt to their environment
c. a random occurrence in evolution
d. a type of genetic drift

1. what does genetic drift refer to?

a. changes in allele frequencies due to environmental factors
b. random chance events that affect allele frequencies
c. the movement of individuals between populations
d. a form of natural selection

1. what is the founder effect?

a. the introduction of new alleles into a population
b. the loss of genetic diversity due to a small population founding a new one
c. the selection of traits beneficial for survival
d. a natural disaster impacting a population

Explanation:

• Question 5: Natural selection is a process where organisms better adapted to their environment tend to survive and reproduce more. So, it helps species adapt. Option a is artificial breeding, c is incorrect as it's not random in terms of adaptation, and d is wrong as they are different concepts.
• Question 6: Genetic drift is about random changes in allele frequencies (not due to environmental factors like in a, not movement as in c, and not a form of natural selection as in d).
• Question 7: The founder effect occurs when a small group starts a new population, leading to loss of genetic diversity (not introduction of new alleles as in a, not selection as in c, and not just a natural disaster as in d which is more general).

Answer:

1. B. A process that helps species adapt to their environment
2. B. Random chance events that affect allele frequencies
3. B. The loss of genetic diversity due to a small population founding a new one