Which of the following is produced by the immune system to identify foreign cells? antibodies
antigens
bacteria
colored dye

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.

How do the evolutionary chart and the video support the claim that all living things are made up of cells?

All other things being equal the size of a population will decrease if