The ability to perceive a bitter taste from certain chemicals, including ptc, has been linked to certain alleles. which of the answer choices would provide an explanation for the fact that almost all nonhuman primates have the "taster" phenotype, whereas the human population has a significant percentage of "nontaster" phenotypes?
a. the advantage to being able to taste bitter compounds would keep you from eating poisonous compounds, an advantage not needed in the human population anymore. b. the advantage to not being able to taste bitter compounds means that humans are more likely to eat vegetables and hence live longer than nonhuman primates. c. nonhuman primates only eat foods that are not bitter, so the phenotype of tasting bitter compounds was not selected against. d. humans needed the ability to not taste bitter compounds, so the mutation happened.

As , plants meet their needs for making food from air, soil, water, and the sun's energy in a process called there are plants called grow high in trees without here are words to put in the blanks. 1.) producers 2.) consumers 3.) chloroplasts 4.) epiphytes

What causes the force that pushes magma from the magma chamber through the pipe and vent of a volcano?

Getting out of bed is the first goal i tackle each day. 2several small goals are achieved by me as the day progresses. 3when i am riding the bus home or walking the dog, i think about the bigger goals i have for my life. which statement correctly describes the verb tense, aspect, and voice in this paragraph? a.sentences 1 and 2 contain present progressive verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice. b.sentences 1 and 2 contain simple present verbs. sentence 3 contains present progressive verbs. all three sentences use active voice. c.sentences 1 and 2 contain present progressive verbs. sentence 3 contains simple present verbs. all three sentences use active voice. d.sentences 1 and 2 contain simple present verbs. sentence 3 contains both present progressive and simple present verbs. sentence 2 uses passive voice.