If a certain band on one chromatography strip has been identified as chlorophyll a, chlorophyll a could be identified on a second chromatography strip by looking for a
band
a. in a parallel position
b. of darker color
c. in reverse position
d. with no color

Use the drop down menus to match each example to the fossil topic discussed then to show how the fossil record gives evidence of evolution

In a lab, scientists grew several generations of offspring of a plant using the method shown. what conclusion can you make about the offspring? a. they formed from meiosis and mitosis. b. they have half the number of chromosomes as their parent. c. they have low genetic variability among them. d. they will be able to reproduce only after they grow flowers.

What is it called when lava when it erupts from the surface through volcanoes.