Mitosis, 1 cell division, growth and repair, somatic cells, Meiosis, crossing over, homologous pairs, haploid gametes, plant cells, chloroplast and mitochondria, cell wall, plasmodesmata, animal cell, centrosomes, cleavage furrow, lysosomes, positive feedback, blood clotting, oxytocin, fruit ripening, negative feedback, blood sugar regulation- insulin, osmoregulation- ADH, thermoregulation, Short distance signaling, synaptic cleft, neurotransmitters, ligand gated channels, Contact dependent signaling, T cells, macrophages/WBCs, B cells

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