The rate at which blood flows through the human body changes in response to many factors. Which statement describes one of these factors and its effect on blood flow? (highlight the correct answer. The narrowing of blood vessels increases pressure and leads to faster blood flow.

High blood viscosity increases the resistance in the blood vessels and leads to slower blood flow.

Low blood pH decreases the rate of diffusion through the blood vessels and leads to slower blood flow.

The changing of the shape of red blood cells to a crescent shape decreases resistance and leads to faster blood flow.

High blood viscosity increases the resistance in the blood vessels and leads to slower blood flow.

Explanation:

the answer is a) cell division.

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answer: zinc is the substance which has a volume of 1.38 .

density is defined as the mass of an object per unit volume.

it can be calculated by dividing mass of a substance by its volume i.e.

si unit of density is kg per cubic meter and cgs unit of the same is gram per cubic centimeter.

now from the given data volume can be calculated by the formula .

hence, the volume of aluminium will be = which comes out to be 1.703 .

similarly, volume of zinc, chromium, and nickel will be 1.378 , 0.869 , and 0.356 respectively.