Que significa hostilidad??

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.

Apart of an ecosystem that can restrict the growth of a population is referred to as

The specific heat of ice is 0.5 calories/gram°c. 20 grams of ice will require ll calories to raise the temperature 1°c. 05