An embolus is anything which travels through the blood vessels until it reaches a vessel that is too small to let it pass through, and this causes the blood flow to stop. Basically, a thrombus is the blood clot itself, and the embolus is a fraction of the blood clot which travels through the blood vessels.
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A) diploid cells contain two sets of chromosomes
The graafian follicle is the follicle that contains the secondary oocyte and after ovulation changes to a corpus leteum which secretes progesterone
