Which statement correctly explains a symbiotic relationship? A
Mutualism is a relationship in which intestinal bacteria produce Vitamin K in humans.

B
Parasitism is a relationship in which a spider crab is camouflaged with seaweed on its back.

C
Commensalism is a relationship in which a blood-sucking mosquito feeds on the blood of a dog.

D
Predation is a relationship in which a plant grows taller in bright sunlight than in a shaded area.

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