In the figure illustrating the typical enzyme reaction, which is a substrate reactant?

a
b
e
a or b
c
d
c or d

Which type of neuroglia is found outside of the brain?

What are the student's observations and inferences before he starts his investigation?

First described the system of fingerprint ridges and spirals, which eventually were used for fingerprinting. a.) fare and fidelis’s pathology b.) dr. calvin goddard c.) hans gross d.) marcelo malpighi e.) leeuvenhoek’s microscope