Examlex
Which one of the following structures degenerates if a fertilized egg does not embed in the uterus?
Half-life
The time required for a quantity to reduce to half its initial value, commonly used in nuclear physics to describe the decay of radioactive substances.
Alpha Particle
A type of radioactive emission consisting of two protons and two neutrons, equivalent to a helium nucleus.
Beta Particle
A beta particle is a high-energy, high-speed electron or positron emitted by certain types of radioactive nuclei during radioactive decay.
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