Consider the Graph at the Right

question 71

Short Answer

Consider the graph at the right.
(a) Does it have an Euler circuit?
(b) Does it have an Euler path?
(c) Does it have a Hamilton circuit?
(d) Does it have a Hamilton path?

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Definitions:

Memory Cells

B or T cells (lymphocytes) that permit rapid mobilization of the immune response on second or subsequent exposure to a particular antigen. See memory B cells and memory T cells.

Dendritic Cells

Immune cells that process antigen material and present it on their surface to other cells of the immune system, playing a critical role in triggering adaptive immunity.

Natural Killer Cells

A type of lymphocyte (white blood cell) that plays a major role in the rejection of tumors and cells infected by viruses.

Interferons

A group of signaling proteins made and released by host cells in response to the presence of pathogens, such as viruses, bacteria, or tumor cells.