Which of the following factors influence enzyme activity? select all that apply.

a)
time of day

b)
whether the reaction is exothermic or endothermic

c)
temperature

d)
ph

e)
the activation energy

Q: a: in sexually reproducing animals, once fertilization of the egg takes place, the exists as a single cell until cell division begins

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

Which of the following is the best definition of a eukaryota? a. a one-celled organism that does not have a membrane-bound nucleus b. a one-celled organism that does not have a cell wall c. an organism whose cells each contain a membrane-bound nucleus d. an organism whose cells each have a cell wall