A student is measuring the volumes of nectar produced by a flowering plant for an experiment. He measures nectar from 50 flowers using a graduated
nder that measures to the nearest militer (ml) Which statement
describes a change that could help improve the results of his experiment?
A His measurements will be more accurate if he takes
measurements from an additional 100 flowers
B His measurements will be more precise if he uses a graduated
yinder that measures to the nearest tenth of a ml
His measurements will be more precise if he takes measurements
from an additional 100 flowers
His measurements will be more accurate if he uses a graduated
inder that measures to the nearest tenth of a ml

Provide one reason why mitosis occurs.

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?

In a population that is in hardy-weinberg equilibrium, there are two possible alleles for a certain gene, a and a. if the frequency of allele a is 0.4, what fraction of the population is heterozygous? a. 0.40 b. 0.60 c. 0.16 d. 0.48