Answer:
Answer is D, Heart rate monitor.
Explanation:
It is known to be true that during exercise, the rate of the heart beat increases, and this is good for our heart to keep on functioning properly.
A heart rate monitor is usually a chest strap device to measure and sometimes record the rate of the heart's activities such as rate and rhythm. This device is with electrode sensors for transmitting heart rate to an app. Example of a heart rate monitor is Holter monitor.
Aphotic zone of a body of water refers to the part where almost no sunlight. With this condition of water, marine life is limited to species who does not light for survival. The aphotic area also is the basin of the dead organism that submerges from the photic part. Temperatures at these areas are also low.
The Volumetric flask is used for preparing liquids with volumes of high precision. The Filter Flask is also known as the A Büchner flask. It is like the Erlenmeyer but this one is thick-walled and has a special arm in the side. It is used for filtering liquid.
Answer:
Blood vessels in the heart dilate to increase blood pressure.
<em>Hope this helps!!!</em>
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