Examlex
Explain why the variety of food sources available has declined since about 1900.
Primary Oocyte
An immature female reproductive cell that undergoes division to form an ovum and secondary oocyte during ovulation.
Meiosis II
Meiosis II is the second division in the process of meiosis, a type of cell division specific to the production of gametes, resulting in four haploid cells from the original diploid cell.
Parthenogenesis
A form of asexual reproduction where an organism develops from an unfertilized egg.
Acrosomes
Enzyme-cap structures at the tip of sperm cells that help penetrate the egg during fertilization.
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