You have to put a lid on petri dishes in order to ensure that no outside contaminants get inside the dish.
I believe it's B. Plasma and red blood cells are the 2 main components of blood.
Two structural characteristics that triglycerides and phospholipids have in common are that they are both composed of fatty acids? The fatty acids are attached to a molecule called glycerol and fatty acyl tails
Stem cells begin to transfor into different types of cells in the human body in a process known as cell differentiation.
Cellular differentiation occurs throughout the cell development of a multi-cellular organism. It occurs when the cell changes from a simply zygote into a complex system of tissues and cell types.
Stems cells are cells which have the potential to develop into many different cell types in the body during early life and growth. Stem cells serve as internal repair system in many tissues. When stem cells divide while undergoing cell differentiation, it can either retain being a stem cell or become another type of cell like muscle cell, brain cell, or red blood cell.
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