Spindle Fibres are those structures which move chromosomes only during cell division.
And these spindle fibres are formed by the command of centrioles which during the process move to the on the opposite poles and helps the cell to prepare for division.
Without backbone or having no backbone is considered as INVERTEBRATES.
hope its help...
--kcirejay:♥)
Answer: "Vitamins" .
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Antibodies attach to a specific antigen and make it easier for the immune cells to destroy the antigen. T lymphocytes attack antigens directly and help control the immune response. They also release chemicals, known as cytokines, which control the entire immune response.
ATP is that product of cellular respiration used by human body for energy.
