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📖 Biology Glossary

Searchable A-Z glossary of biology and anatomy terms — clear definitions written for students at every level.

20
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Sarcomere

Basic unit of a muscle fiber; actin and myosin filaments slide past each other to produce contractio...

Anatomy
Synapse

Junction between two neurons where neurotransmitters cross the synaptic cleft to transmit signals.

Anatomy
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