It is useful for the walls of capillaries to consist of a single layer of thin, flattened cells in order to easily diffuse oxygen and nutrients easily from the blood and into the capillaries. Not only that, but this also makes it more efficient for carbon dioxide and other waste molecules to diffuse from the capillaries and into the blood. If capillaries were thicker than a cell, then it would be more difficult for materials to diffuse through the thick layer of cells.
Option B represents the image would result in the biceps muscle contracting and the forearm being lifted.
<h3>What is Biceps muscle?</h3>
This is the muscle which is found in the front region of the upper arm and is involved various forms of movement.
Contraction means shortening of the biceps which is made possible when a force acts upwards thereby resulting in the forearm being lifted. This is why B was chosen as the most appropriate choice.
Read more about Biceps here brainly.com/question/1626792
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The smaller arteries that connect to the capillaries, are called arterioles.
0.230cm should be the correct conversion
The type of earth surface is
Cool ocean
