Which of these describes a method in studying plate movements?
observing absence of magnetic rocks in locations that do not match the poles
match relief elements only on the western side of the atlantic ocean
recording the spread of the seafloor in the mid-atlantic region
correlate the rotation of earth to plate movement

What major structure can be used to tell apart the embryos of acoelomates pseudocoelomates and coelomates?

Which organelle releases chemicals that break down large food particles into smaller ones?

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.