12.1 bio

Question 1

Comparing the causes and the effect of natural selection vs. genetic drift

Answer 1

Natural selection favors traits that increase an individual’s survival and reproduction, leading to changes in allele frequencies over time. Genetic drift, on the other hand, is a random process that can alter allele frequencies, especially in small populations, without necessarily promoting adaptation.

Question 2

Natural selection

Answer 2

a fundamental mechanism of evolution, where organisms with traits better suited to their environment are more likely to survive and reproduce, passing those advantageous traits on to their offspring.

Question 3

Genetic Drift

Answer 3

a process of evolution where the frequency of gene variants (alleles) in a population changes randomly over time.

Question 4

Variation

Answer 4

the process of changing or differing from a standard or norm.

Question 5

Fitness (make sure this is the biology/natural selection definition!)

Answer 5

an organism’s ability to pass its genetic material to its offspring.