Dietary and/or can increase blood ldl concentrations.

a. saturated fatty acids, trans fatty acids

b. omega-3 fatty acids, trans fatty acids

c. omega-3 fatty acids, cis fatty acids

d. fiber, omega-6 fatty acids

e. polyunsaturated fatty acids, monounsaturated fatty acids

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