In a population of humans, the frequency of straight hair is 34 percent. if straight hair is the recessive phenotype, what is the frequency of the homozygous recessive genotype? 17 percent 34 percent 66 percent 68 percent

What have we learned from fossil evidence about evolution? a) it is an abrupt change. b)the process is observable. c) it takes place during one lifetime only. d)the most complex traits are always selected.

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. label the following topographic map. click on a label below the map to select it, and then click on the appropriate box on the map to place the label. (increments for contour lines is 50 ft).

Why is it important to study each branch of earth science?