What does sonar equipment measure

Answers

Answer 1

Answer: It measures the oceans depth!

Answer 2

Answer: the depth of the ocean floor.comment if wrong. ;-)

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Which of the following causes a precipitate to form

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I think it may be atoms combining in a solution to form a salid. Not sure though, sorry.

A chemical change happens to form a precipitate

What is the mesentery of a frog

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Net Frog Dissection: Organs 10: Pancreas & Mesentery. Organs 10: Pancreas. You can't see the pancreas without lifting the stomach and intestines with the forceps. The pancreas is a thin, yellowish ribbon. The intestines are held in place by thin, transparent tissue called the mesentery.

(a) It is possible to measure a patient’s heart rate by either palpating their peripheral pulse, by observing their ECG, or by listening for the lub-dup through a stethoscope. However, patients with atherosclerosis of the femoral artery may not have a pulse in the popliteal artery or dorsalis pedis of the foot. Does this mean that they will also lack a heart beat (lub-dup) or QRS complex? Explain the relationship between a heart beat, pulse, and QRS complex. (B) Why is there a delay between systole of the ECG and the resulting pulse felt in the finger (R-Pulse)?

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b)When you listen to the heart sounds, you are hearing the flow of blood which stops abruptly when a heart valve closes. This produces the "lub-dub" sounds. 1st heart sound (when the Mitral Valve closes) as the ventricle contracts (systole) and then 2nd heart sound (when the Aortic Valve closes) and the ventricle starts to fill again (diastole)
The pulse is the wave of pressure you can feel through the artery walls. This denotes systole.
The ECG's QRS complex is the electrical signal that tells the Ventricles to contract. You can see that the QRS occurs right at the beginning of systole and triggers Isovolumetric contraction.
So the QRS on the ECG, the pulse wave you can feel (ie. the rise in aortic pressure) and the 1st heart sound all signify SYSTOLE.
there a delay between systole of the ECG and the resulting pulse felt in the finger (R-Pulse) because it takes a little bit of time for the pressure to transmit through the body, as the finger is not on the heart (if it was there would be no delay)

Once a virus gets inside a cell, does it change the instructions to the cell's nucleus?

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Answer:

Once a virus enters a cell, it hijacks the cell's machinery to replicate itself. However, it does not directly change the instructions in the cell's nucleus.

Explanation:

Why do you think the MNI is important working in a scenario like this

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Explanation:

MNI is the Minimum Number of Individuals required to test and validate an experiment or a case. It is used to determine the minimum number of people or individual involved in a case or an experiment.

In forensic anthropology, MNI is used to determine the least number of people required to account for the bones present. The MNI chosen is not necessarily will be right while solving a case. The investigators might night to consider different set of individuals.

How are underground gas or oil leaks cleaned A.Groundwater is pumped to the surface and purified
B.Sewage treatment are built to clean the water
C.Natural fruit acids are used to dissolve the oil
D.Bacteria are added to the ground water to feed an oil

Answers

D.Bacteria are added to the ground water to feed an oil

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