Answer:
one of the major function of the skin is a production of vitamin d false.
Answer:
Female reproductive system is comprised of ovary, fallopian tubes, uterus, and vagina. In humans, female have two ovaries that release egg at the time of ovulation. The egg is released in fallopian tube, where it gets fertilized with male sperm to form zygote. The uterus is nurturing organ for developing zygote till the delivery of fetus. The vagina acts as opening for the uterus.
Male reproductive system is comprised of testis, vas deference, urethra, and p3nis. Testis is responsible for the synthesis of sperms or male gametes. From testes, sperms are transported to vas deference via epididymis and ejaculated through urethra.
Explanation:
I looked it up
Nerve cells communicate by sending an electrical signal through an axon, from this molecules get released into the synapse this then binds itself onto receptor sites. With ion-linked channel receptors, the ligands get binded to a protein. The ion channels are then opened and the proccess gets repeated. Does that help?
Food is digested, or broken down, so that the nutrients can be extracted for use by the body as it passes through the digestive system. If food wasn't digested you would not have energy required to run vital chemical reactions and eventually resulting death
