Which of the following is a type of lipid?
a. enzymes
b. waxes
c. water
d. glucose

How does an angiosperm prevent self pollination

The energy required to vaporize a certain amount of a substance is greater than the amount of energy necessary to raise the temperature of the same amout of that substance by 1 degreee celcius

Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human