Write a caption for saturn's moon enceladus

In which case would a scientist choose to use a dissecting microscope rather than a compound microscope

Why has two different alleles for the same trait?

How do the sperm cells get from the stigma to the ovules? a. they slide down the petals to the bottom of the flower. b. they travel through pollen tubes. c. they travel along filaments. d. insects carry the sperm cells from the stigma to the ovules.