Sodium benzoate is a bitter chemical often used in tiny amounts as a food preservative. the ability of humans to taste sodium benzoate is caused by a dominant allele, t. the recessive allele ("non-taster") is n. what are the genotypes of a "taster" and what are the genotypes of a "non-taster"?
a. tasters. tn or nt
non-tasters: nn
b. tasters: tt or tn
non-tasters: nn or nt
c. tasters: tt or tn
non-tasters: nn
d. tasters: t
non-tasters: n
e. tasters: tt or tt
non-tasters: nn or nn

Many state and local authorities are making laws regarding recreation on lakes, rivers, and oceans to reduce water pollution. why would lawmakers need to consult with scientists before making these laws? a) to make scientists feel important b) so that the laws reduce pollution by a sufficient amount c) so that parks and lakefront facilities will still make large profits d) so that the public will believe that the laws are important to follow

Where is energy trapped inside the organelle chlorophyll

Tara sees a commercial for a brand of pills that promise to boost energy and people perform better in work and school. as people in the commercial talk about how much better they feel when taking the pill, tara notices a message on the bottom of the screen that reads, "this pill is not approved by doctors and has not been tested in controlled experiments." what is the best conclusion that tara should make about the commercial? it is making scientific claims based on subjective observations. it is making scientific claims based on opinions instead of pseudoscientific facts. it is making pseudoscientific claims based on objective observations. it is making pseudoscientific claims based on opinions instead of scientific facts.