Greg is much taller than either of his parents. This is partly because he has inherited ancestral genes that may not have been expressed in either of his parents' phenotypes and partly because the outward expression of height is affected by a multitude of genes that each contribute a small amount. This latter genetic effect is best described as: a. dampening. b. dominant–recessive. c. additive. d. X-linked.

Which of the following is a possible reason for sleep? a) growth b)digestive c)speed d)intelligence

1. variations in a population of moths allow for some of its members to be able to adapt to environmental changes. the better adapted of the moths will be able to survive the change and thus prevail as the “fittest” of the species. (a) describe three mechanisms in which variation can occur within a species population. (b) explain which mechanism or mechanisms would be responsible for the survival of a population of peppered moths better than white moths in an environment affected by industrial soot. justify your answer.

Graphs you see question 5 options: the change in data over time the relationship between different dependent variables the relationship between the independent variable and the dependent variable/s the relationship between different independent variables