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mamaluj [8]
3 years ago
10

While listening to someone’s heart, a doctor discovers that the “lub” sound is weaker than the “dubb” sound. What might this clu

e suggest about the functioning of the heart valves?
Biology
2 answers:
stellarik [79]3 years ago
8 0
The heart valve is slower than the lub and the sound need to increase
dangina [55]3 years ago
6 0

Answer:

This clue suggests that the heart valves functions to prevent the backward flow of blood.

Explanation:

The "lubb" sound is produced when the atrioventricular valves in the heart close. These valves are deep inside the heart and are between the upper (atrial) and lower (ventricular) chambers. The "dupp" sound is produced when the semilunar valves (aortic and pulmonary) close. The valves close to prevent backflow from the blood ejected from the ventricles

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Answer:

The correct answer is : Overconfidence.

Explanation:

A person who thinks his or her sense of direction or judgement is more accurate than it is actually is is known as overconfident, and this phenomenon is known as the overconfidence.

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Answer:

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Explanation:

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<span>The ash trees are being cut when the show signs of infestation of the ash borer. Ash borer in particular the Emerald Ash Borer (EAB) is a tiny bug but can really do a great damage to the tree. When the tree is infested with the ash borer, they lay their eggs in the bark of tree, when the eggs hatch the lavas would start eating on the inner tissues of the tree blocking the flow of nutrients and water in the tree that causes the tree’s to death.  If the tree is infested they cut it down, burn and bury the wood to stop the spread of infestation. Ash trees are valued for its strength and elasticity that is often used to make baseball bats, bows, tool handles and other products that needs durable wood.</span>


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