Answer:
atrial systole, ventricular systole, and complete cardiac diastole.
Explanation:
Every single beat of the heart involves three major stages: cardiac diastole, when chambers are relaxed and filling passively; atrial systole when the atria contract leading to ventricular filling; and ventricular systole when blood is ejected into both the pulmonary artery and aorta
<span>There are two types of stimulus that travel within our body. The two types are chemical and electrical. Electrical stimulus is the type of stimulus that travels from the motor neuron to the skeletal muscle. Electrical muscle stimulation is the elicitation of muscle contraction using electric impulses.</span>
<span>Proteins secreted by epithelial cells. The basement membrane forms as a thin protein fibre membrane with mucopolysaccharides. It separates an epithelium from underlying tissue. Its main function is to anchor epithelium to dermis underneath. The membrane consists of different extracellular matrix structural proteins.</span>
<em>Answer:</em><em> The Answer's are </em><em>A( They are powerful ocean waves) B(Underwater landslides can cause them)</em>
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<em>Explanation:</em><em> I Got it correct on my test! </em>
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Answer:
oxygen
Explanation:
its the only element needed
