I think it is C because i got this same exact question in my class
The elbow (or olecranon joint) is the part of the upper limb between the arm and forearm. This articulation includes the region of the "elbow fold" (or ulnar fossa). It is a synovial joint complex of the upper human limb connecting the arm to the forearm. He thus unites three bones between them: the radius, the ulna and the humerus.
<span>The ulna is a long bone of the forearm, located at its inner side while the radius, the second bone of the forearm, is located at the level of the outer part (the same side of the thumb)</span>
Answer -
T-Cell - White blood cell = Fight off Intruders in the body
B-Cell - Macrophages = Creates Antibodies against antigen.
Cell Differentiate - Stem Cells = My favorite cell of all time in animal because they can turn into almost any cell like neural, signaling, euthyroid. Etc
Answer:
A multicellular organism develops from a single cell (the zygote) into a collection of many different cell types, organized into tissues and organs.During development, cells use both intrinsic, or inherited, information and extrinsic signals from neighbors to "decide on" their behavior and identity.