Which is the result of the actions of the sodium-potassium pump? A) positive charge inside a neuron
B) no charge outside the neuron
C) negative charge inside a neuron
D) no charge inside the neuron

Animal bodies (and even plant bodies for that matter) are complex enough that life couldn't exist without enzymes. enzymes are usually large, complex biological catalysts that are expensive to make. enzymes speed up the rate of chemical reactions without being used up during the reaction (they can be reused many times). they are highly specific in the reactions they regulate. knowing what enzymes are and how they function, why does this explain why complex life forms could not exist if there were no enzymes.

Which type of bacterial reproduction is depicted in the diagram?

How many copies of each chromosomes should be present in each of the 4 final haploid versions of gamete?