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Crucigrama Sopa de Letras Hoja de Trabajo
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Extra credit

Horizontales
process of sperm cell development
process of egg cell development
State of dynamic balance to maintain the optimal functioning for the organism
Verticales
part of the neuron that receives impulses from neurons
forms the myelin sheaths that cover the axons of the neurons
iron-containing protein that carries oxygen in the red blood cells
Junction between two neurons, in which one neuron sends a message to a target neuron through neurotransmitters
the phase of the heartbeat when the heart muscle relaxes and allows the chambers to fill with blood
a regulatory substance produced in a gland and transported by the circulatory system to target distant organs to regulate homeostasis.
the phase of the heartbeat when the heart muscle contracts and pumps blood from the chambers into the arteries