Examlex
The part of a sperm cell that contains enzymes to digest the membrane of the egg cell is the ____________________.
Stimulant
Substances that increase activity in the nervous system, leading to improved mental and/or physical functions temporarily.
Ecstasy
A state of overwhelming joy or rapture, also the common name for MDMA, a psychoactive drug.
Amphetamine
A type of stimulant medication that affects the central nervous system and is used to treat conditions such as ADHD and narcolepsy.
Caffeine
A central nervous system stimulant found in coffee, tea, and various other foods and drinks, known to boost alertness and energy levels.
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