Which of the following is NOT apart of the chromosomal alternations? a) Insertion
b) Deletion
c) Duplication
d) Memorization

What are the four basic classes of organic molecules how do they differ structurally and functionally

Aresearcher has developed two stains for use with seed plants. one stains sporophyte tissue blue; the other stains gametophyte tissue red. if the researcher exposes pollen grains to both stains, and then rinses away the excess stain, what should occur? a) the pollen grains will be pure red.b) the pollen grains will be pure blue.c) the pollen grains will have red interiors and blue exteriors.d) the pollen grains will have blue interiors and red exteriors.

Why is excretion necessary to maintain homeostasis?