Relative dating lab activity
At the base of the wall separating the two atria is another patch of nodal tissue called the atrioventricular node (AV).
A modified form of endoplasmic reticulum in striated muscle cells that stores calcium used to trigger contraction during stimulation.
A fatty acid in which all carbons in the hydrocarbon tail are connected by single bonds, thus maximizing the number of hydrogen atoms that can attach to the carbon skeleton.
Genetic studies work on the premise that a difference in alleles corresponds to a variation in traits among people.These may manifest themselves in biological, physical, emotional, social, or spiritual aspects.The biological and physical aspects of sexuality largely concern the human reproductive functions, including the human sexual response cycle, and the basic biological drive that exists in all species.A chain of supporting cells enclosing the axons of many neurons and forming an insulating layer called the myelin sheath.A rigid, supportive plant cell type usually lacking protoplasts and possessing thick secondary walls strengthened by lignin at maturity.