Examlex
A telescope with a 60 mm objective lens collects how many times as much light as does youreye's 6 mm exit pupil?
Blastocyst
An early stage in human embryonic development, a structure formed about five days post-fertilization, consisting of an inner cell mass and an outer layer of trophoblast cells.
Zygote
The initial cell formed when a sperm cell fertilizes an egg cell, marking the beginning of human development.
Mitotic Division
A type of cell division in eukaryotic cells by which chromosomes are equally divided to produce two identical daughter cells.
Conception
The process of fertilization when a sperm cell unites with an ovum, leading to the formation of a zygote.
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