Aforest ecosystem can support a limited number of bears. this is because?

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.

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

Chloroplasts and bacteria are in size. a. similar b. at different ends of the size range c. exactly the same d. none of these