The source of energy for most autotrophs is

a.

water.

b.

the sun.

c.

heterotrophs.

d.

other autotrophs

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.

What type of graph presents information about how often certain or traits occur?

Which hormone is used by both males and female?