Answer:
Key points
Neurons communicate with one another at junctions called synapses. At a synapse, one neuron sends a message to a target neuron—another cell.
Most synapses are chemical; these synapses communicate using chemical messengers. Other synapses are electrical; in these synapses, ions flow directly between cells.
At a chemical synapse, an action potential triggers the presynaptic neuron to release neurotransmitters. These molecules bind to receptors on the postsynaptic cell and make it more or less likely to fire an action potential.
Explanation:
NOUN
the natural coloring matter of animal or plant tissue.
VERB
(pigmented)
color (something) with or as if with pigment.
"pigmented areas such as freckles"
Answer:the fitness of an organism is the ability to survive and reproduce
Explanation:
The impact of invasive species is that it may cause environmental harm, economic harm, or impact human health.
Hope I helped
<span>This variation be justified by:
</span>Migration to an environment different from their birthplace, and adaptation to the available food, ultimately leading to speciation. because <span>birds use their beaks to eat.</span>.
