If there is microbial growth all the way up to the edges of a disk, how would you record the diameter of the clear ring?

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.

When analyzing tree rings, what do scientists assume a thin ring indicates?

Suppose you were the commissioner of corrections for your state. which correctional activities might come within your domain? which mostly would not