Which phrases describe air density? check all that apply. 1. increases as altitude increases 2. equals mass divided by volume 3. pushes molecules in one direction 4. exerts more pressure as it increases 5. measures how tightly molecules are packed

Why can't you grow plants with adhesion water?

How are the reproductive cycles of a fungus and a pteridophyte similar? a)both organisms form fruiting bodies that produce diploid seeds. b)both organisms produce haploid spores and exhibit diploid and haploid stages. c)both organisms reproduce sexually when two haploid hyphae fuse. d)both organisms exhibit a diploid stage and are only able to reproduce asexually.

Describe your dna model. which part do the straws represent? the pushpins? the paper clips and the black dots you made with the marker?