Answer:
Explanation:
Darwin believed that lungs evolved from gas bladders, but the fact that fish with lungs are the oldest type of bony fish, plus molecular and developmental evidence, points to the reverse – that lungs evolved before swim bladders
Answer:
Are there any structures within the heart or vessels that prevent the backflow of blood? If so, what are they and where are they located?
Explanation:
<em>The heart is made up of four cavities. These are the following</em>: Two ventricles and Two atria.
<em>The left ventricle is the one that exerts the greatest muscular strength, because from here the blood is pumped to the systemic circulation. To prevent blood from flowing backward between two beats, there are several types of heart valves</em>: one type between the atria and the ventricles, and another between the ventricles and arteries.
The semilunar valves in turn prevent blood from returning from the pulmonary artery and the aorta to the ventricles, when after pumping they dilate again for muscle relaxation.
<u><em>The answer is</em></u>: <u>Yes, and they are semilunar valves.</u>
Answer:
3 HIV destroys the immune system. Leaving the body without the ability to fight off disease.
The effects of a right hemisphere stroke may include: Left-sided weakness or paralysis and sensory impairment. Denial of paralysis or impairment and reduced insight into the problems created by the stroke (this is called "left neglect") Visual problems.
<h3>What is impacted by a stroke in the right hemisphere?</h3>
A right hemisphere stroke may result in sensory impairment and left-sided weakness or paralysis. Denial about paralysis or impairment as well as diminished awareness of the problems caused by the stroke are referred to as "left neglect." Visual issues., such as an inability to see each eye's left visual field.
<h3>Does a stroke on the right side impact speech?</h3>
Speech and communication issues are typically seen in right-brain injured stroke survivors. Because of their weak or uncontrolled left side facial and mouth muscles, many of these people have trouble pronouncing spoken sounds correctly. Dysarthria is the term for this.
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The doctor has to give 12 ml for 3 g of medication at a 25mg/ml ratio to the patient.
Here the doctor is giving 3 g of medication to the patient.
The concentration ratio for the medication is 25mg/ml.
Medication is given to the patient= (Amount medication)/(Concentration Ratio)
= 3/ 0.25
= 12 ml
Thus the amount to be given to the patient is 12ml with a 25mg/ ml concentration ratio.
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