The phases of human development are biologically defined. how, if at all, can they also be culturally defined?
what is the evolutionary relationship between vitamin d, folate, melanin, and sunshine? how does this affect fitness?

If you were given a map of the sensory cortex in the postcentral gyrus of the cerebrum, do you think the map would have more “space” devoted to the regions of the body that have the highest density of sensory receptors, or the regions of the body that have the lowest density of sensory receptors? explain

Which of the following is not a benefit of green revolution? a) new crop varieties b) increased crop yields c) cost effective d) new crops may require larger amonts of water than the previous ones.

Explain what a zygote is. use the terms egg cell, sperm cell, and fertilization in your explanation.