MCQ ...help me.​It's a last question

Dominance the dominant allele doesn’t fully mask or hide the recessive. for example, a red carnation with a white carnation will produce a carnation. one gene one trait. well most of the time than one gene controls a trait. we are all different but genetically speaking we are % similar with regards to genetic makeup.

Name the plastid and pigment likely to be found in the cells of (a) petals of sunflower (b) ripe tomato.

Why is excretion necessary to maintain homeostasis?