Examlex
Which method often results in colonies developing down throughout the agar and some colonies on the surface?
Blastula
An early stage of embryonic development in animals, characterized by a sphere of cells surrounding a fluid-filled cavity.
Male Reproductive System
The system in males responsible for producing, maintaining, and transporting sperm and semen, as well as discharging sperm within the female reproductive tract during sex.
Semen
The male reproductive fluid containing spermatozoa and various other components, used for reproduction.
Zygote
The initial cell formed when two gamete cells are joined by means of sexual reproduction.
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