Parathyriod glands produce a parathyriod hormone aka PTH
Symbiosis is the relationship of 2 organisms. The 3 major types are commensalism, mutalism, and parasitism. Hope that this helps!
Breaking down food into smaller molecules. Absorbsion of nutriets taking place in the small intestine and elimination of waste products through the large intestine/ Colon
The DNA is splitting in two, thymine pairs with adenine, and guanine pairs with cytosine