Examlex
In order to construct an interval estimate for the difference in the means of two normally distributed populations with unknown but equal variances,using two independent samples of size n1 and n2,we must use a t distribution with (n1 + n2 -1)degrees of freedom.
Prophase
The first stage of cell division, where chromosomes become visible and the nuclear envelope dissolves.
Telophase
The final phase of cell division, where the nucleus re-forms around the separated chromosomes, completing mitosis.
Cancer Cell Migration
The process by which cancer cells move from the original tumor site to invade surrounding tissue or spread to distant parts of the body.
Animal Swarms
Groups of animals moving together in a coordinated manner, often seen in species such as birds, fish, and insects.
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