When a primary oocyte undergoes meiosis, it forms four cells. How many cells develop into functional gametes

One cell(Haploid)

Explanation:

Gametes cells consist of one cell, it is half the chromosome number of the body cell. Gametes are produce through reduction cell division called meiosis and it results in the production of four daughter cells that are haploid with each of the cells contain a haploid number of chromosomes.

During fertilization, the female cell contains haploid number of cells and the male contains haploid number of cell fuses together to form a diploid organism.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.

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