Conception also known as fertilization, is when the nucleus of a sperm cell fuses with the nucleus of an egg cell in the uterus thus creating a fertilized egg or zygote that will grow to become an embryo and eventually a fetus. Conception is the fusing of the two cells to create one fertilized ovum.
Answer:
The central nervous system is made up of the brain and spinal cord.
The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body.
Explanation:
B. Lactic acid build up creates pains and aches on the muscles
Unplug the toaster first. then wait for the bread to cool down then use mittens or a cloth to pull out the toast.
then try taking out the crumbs then you can plug the toaster in again
The answer is D. Muscles tense.
