8) The plasma membrane is composed of a double layer of molecules called molecules, which have a
head and 2
tails pointing toward each other. The mechanical stability of the membrane lies with
molecules. The protein molecules function in
and

What is the similarities and differences between bacteria and eukaryote?

Cathy hypothesized that corn would not grow in mud. to test this hypothesis, she took corn kernels and placed 5 in mud, 3 in soil, and 2 in water. to her surprise, the kernels in the mud grew faster than the kernels in the soil. what error might have caused these unexpected results? a. wrong hypothesis b. not enough variables c. undefined control d. too many variables

What are some natural processes that represent physical and chemical changes?