The neuron, or nerve cell, is the basic functional unit of the nervous system
Option C: B,C,D,E,F
because rocks on the bottom are older than the rocks at the top.
Sexually because human need to have sex in order to create a child in their bodies
RNA nucleotides have a uracil base instead of thymine.
The correct answer is A. "A sperm cell and an egg cell combine to form an embryo."
