Penicillin was the first antibiotic introduced during World War II. Today, many bacteria are resistant to antibiotics. Which statement explains the appearance of these resistant varieties? Group of answer choices

A. Penicillin shared DNA with bacteria to produce resistant strains.

B. Penicillin became less concentrated over the last few decades.

C, Penicillin killed most of the bacteria but left the resistant bacteria to reproduce.

D, Penicillin causes bacteria to reproduce more quickly to maintain a consistent population.

How does deforestation affect the water cycle? a. it increases the amount of runoff b.it increases the amount of percolation c. it increases the amount of transpiration d. it increases the amount of precipitationa it increases the amount of runoff

Is there any solid scientific evidence that humans have been cloned?

Suppose a particular species of tulip plant has three alleles for the gene that codes for flower color. the cr allele produces red tulips, the cp allele produces purple tulips, and the cw allele produces white tulips. cr is dominant over cp and cw, and cp is dominant over cw. for each of the following crosses, determine the expected ratio of offspring for each flower color. cr cp x cp cw cr cw x cp cw 1 red: 1 purple : 0 white, 1 red: 2 purple: 1 white, 2 red: 1 purple 1 white, 1 red: 3 purple : 0 white, 2 red: 0 purple : 2 white, 2 red: 2 purple : 0 white