Based on her signs and symptoms, in what stage of iron-deficiency is belinda? a. she is not deficient yet but is at risk. b. subclinical c. stage 1 d. stage 2 e. stage 3

About which of these did darwin have a poor understanding? a) that much of the variation between individuals in a population is inherited b) the factors that cause individuals in populations to struggle for survival c) the sources of genetic variations among individuals d) that individuals in a population exhibit a good deal of variation e) how a beneficial trait becomes more common in a population over the course of generations