Answer:
C. Enzymes catalyze reactions in digestion
A nerve is a bundle of fibers that receives and sends messages between the body and the brain. The messages are sent by chemical and electrical changes in the cells, technically called neurons, that make up the nerves.
Answer:
protists
plants
eukaryotes
prokaryotes
Explanation:
besides a few groups that survive until the present, there were little multi-cellular life forms during the precambrian era
The answer I believe is a meteorologist. :)
