2nd one is the right answer
<span><span>Kingdom:Animalia
</span><span>Phylum:Mollusca</span></span>Class: Gastropoda
Symmetry: Bilateral
mantle<span> Is used for breathing and </span>excretion
Foot helps in locomotion
The visceral mass<span> helps in digestive, nervous, excretory, reproductive, and respiratory systems.</span>
Cephalopod belongs to the same phylum.
This is a case of a hypertrophic cardiomyopathy with preserved ejection fraction. A hypertrophied left ventricle is a echocardiographic sign that there is chronic stress put in the left ventricle, most commonly in overcoming high aortic pressures in patients with systemic hypertension. In this case, there is normal chamber volume and normal ejection fraction therefore the heart is functionally normal and ejection fraction is preserved.
Answer: The nodes of Ranvier
Explanation: The speed of impulse conduction along an axon are increased by this.
