What side of the leaf has more stomata and why?

Diabetes melitius can result from

The mating of a horse and a donkey produces a mule, which is a viable offspring that is infertile. We would conclude that A. A house and a donkey are members of the same species B. A mule can fall into the species lines of both a mule and a horse. C.

The experiment that Stanley L Miller and Harold C Urey conducted regarding the origin of life from inanimate matter was conducted in the absence of oxygen over water. But doesn't water contain oxygen?

A chemical substance that is produced and secreted by microorganisms that inhibits or kills other microorganisms (including pathogenic microorganisms) is called

Which types of organisms are always made up of only one cell each?

3) Amphibians hatch out of their eggs with: A lungs and develop gills later. B lungs and keep them their whole lives. C gills and develop lungs later. D All of the above.

Who discovered what in photosynthesis?

How does the water cycle play a role in the rock cycle?

True or false:a plant or animal offspring is guaranteed to survive and reproduce

Describe the factor that affect blood pressure