The lymph nodes produce lymphocytes that assists in immunity from disease. These are one of the many types of white blood cells that is produced in the body. These are being produced by the lymph nodes wherein it protects the body from infection. Lymphocytes are classified into NK cells, T cells and B cells. When the levels of these cells are not in the normal zone, then most likely infection is present. When it is high, it is a sure sign that a viral infection is present. When it is low, the body would become susceptible to infections. So, it is very important that the concentration of these cells in the body is kept on the normal range.
Answer:
Pangea refers to the one, large, solid land mass that is believed to have existed before the continents divided.
Explanation:
Pangea is often the explanation for tectonic plates, as they are believed to have been a by-product of the split of Pangea well over a million years ago.
The greatest possible latitude is 90 degrees ... 90°N at the north pole, 90°S at the south
<span>pole, and you can't get any farther from the equator than the poles. </span>
SPINDLE FIBERS
In Mitosis, Spindle Fibres form at opposite poles of the cell and meet at the equator. Collectively, they form a spindle-shaped structure which attach to Centromeres.
CENTROSOMES
The organelle located near the nucleus in the cytoplasm,
composed of 2 centrioles that divides during S Phase
Centrioles are surrounded by a mass of proteins (Pericentriolar Material (PCM))
Migrates to opposite poles of the cell during mitosis
Involved in the creation of spindle fibres
CHROMOSOMES
A threadlike structure of nucleic acids and protein found in the nucleus of most living cells, carrying genetic information in the form of genes.
Centromeres
The constricted region joining the two sister chromatids that make up an X-shaped chromosome. It also serves as the point of attachment for spindle fibers when the spindle fibers are pulling the chromosomes toward the centrioles (situated on opposite poles in a cell) prior to cytokinesis.
