Hormones regulate tissues and systems by altering cellular activity, muscle contractions, cellular secretions, and neurotransmitter release.
QUESTION 9
Which is not metabolic waste excreted by the kidney? carbon dioxide, nitrogenous compounds, drugs like penicillin, excess sodium ions, toxins.
QUESTION 10
The minimum number of cells for a reflex arc is: sensory neurons, interneurons, motor neurons; sensory neuron, interneuron, motor neuron; sensory neuron, interneurons, motor neuron; 2 sensory neurons, motor neuron; sensory neurons, interneuron, and motor neurons.