Examlex
The compound, (NH4) 2S, can be used in analysis for trace amounts of metals present in a sample. What is its name?
Fertilized Egg
The cell resulting from the union of a sperm and an ovum, marking the beginning of a new organism's development.
Embryonic Period
The period of prenatal development that occurs two to eight weeks after conception. During the embryonic period, the rate of cell differentiation intensifies, support systems for the cells form, and organs appear.
6 Weeks
A time frame often referenced in developmental and health contexts, marking specific milestones or recovery checks.
7 Months
A period of time equivalent to approximately 213 to 217 days, often referred to in the context of age or development stages.
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