Examlex
What evidence in Mars's atmosphere supports the idea that Mars once had flowing, liquid water?
Zygote
The initial cell formed when a sperm cell fertilizes an egg cell, representing the earliest stage of development in many organisms.
Chromosome Number
The total number of chromosomes present in the cell of an organism, which is characteristic of each species.
Gamete
A fully developed single-set chromosome male or female reproductive cell capable of merging with its counterpart from the opposite gender to produce a zygote through sexual reproduction.
Haploid
A cell or nucleus having a single set of unpaired chromosomes, typical of gametes.
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