Which of the following is true about mutations? mutations always bring about changes to the organism's traits
a mutation is an exact copy of a gene
mutations can be beneficial, harmful, or have no effect on an organism
mutations happen when the sequence of bases change in the organism's DNA
mutations are always harmful to an organism
mutations can occur naturally
mutations always directly affect an organism's proteins
a mutation is a change in a gene

Humans are believed to have evolved in coastal regions in east africa. the region had an abundant supply of fish for early humanoids to eat. when scientists analyze the fads gene they see an interesting pattern. people whose families have lived in this area of east africa for generation show a high level of diversity in alleles for the fads gene. conversely, people whose families had migrated inland a moderate distance from sources of fish showed a much lower diversity for fads gene alleles. additionally, the fads alleles found in people whose family has lived inland for generation are almost all gene alleles which produce fads proteins with a high level of function and activity. how do anthropologists explain this?

What material did the moon come from?

Animals that have thick fur and ae able to store large amounts of body fat live where ?