Humans vary in their ability to taste the bitter chemical compound phenylthiocarbamide ( PTC ). The taster phenotype is dominant to the non-taster phenotype. Researchers tested the PTC taster phenotype of individuals from an isolated population. In the sample, 780 individuals were able to taste PTC and 70 individuals were not able to taste PTC .Assuming the population is in Hardy-Weinberg equilibrium, what is the frequency of the non-taster allele

When plants use sunlight to make food, the energy of sunlight is

The ultimate purpose of respiration: a. inhale 02 and exhale co2 b. place oxygen in the lungs c. place oxygen in the blood d. deliver oxygen to every blood cell

Which statement is a correct description of the processes of respiration and transpiration in a plant? question 7 options: transpiration is when the plant loses water through its leaves. respiration is when the plant breaks down the sugar in its cells to release energy. transpiration is when the plant pulls water into its roots. respiration is when the plant breathes. transpiration is when the plant grows over time. respiration is when the plant breaks down the sugar in its roots. transpiration is when the plant produces buds. respiration is when the plant dies.