To most humans, the chemical ptc tastes very bitter. the ability to taste it is a dominant trait. people who can’t taste ptc exhibit the recessive trait. which genotype represents people who can’t taste the chemical?

If someone could do the first couple, just so i can see how it's done that would be great! 20 points. complete a dichotomous key for the 10 leaves on the common leaves sheet. the chart provided here allows for 11 pairs of statements. depending on how you build your dichotomous key, you may or may not need all of them, or you may need to add some.

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time

Acceleration is a direct result of a.) balanced forces b.) unbalanced forces c.) gravity d.) velocity