Cardiac muscle fibers function is to contract the heart.
The part of the leaf that is connected to the transport sister in the veins of the leaf.
Bacteria are classified into 5 groups according to their basic shapes: spherical (cocci), rod (bacilli), spiral (spirilla), comma (vibrios) or corkscrew (spirochaetes). They can exist as single cells, in pairs, chains or clusters.
DNA is replicated during the “S” phase (synthesis).
Series of changes in the development of an organism.