Answer:
The veins and arteries encounter differences in the pressure of the blood flow. As a consequence, these differences are seen in the composition of the vessels. The arteries encounter with a pressure wave as blood gets pumped from the heart. This can be experienced as a pulse. Due to this pressure, the arteries' walls are much thicker in comparison to those of the corresponding veins.
Thus, arteries appear to exhibit more uniform shape, they seem to be more circular in shape in comparison to veins. Veins do not encounter with the pressure waves like the arteries do. Thus, they do not require to be structurally strong. The vessels' walls of veins are thinner in comparison to arteries and do not exhibit much tunica media.
Piaget championed the position
called constructivism. Constructivism is a theory on learning, which suggests that
people acquire knowledge from their experiences and together with knowledge
that they already have, construct their own understanding of these things. Piaget's
theory extends over learning theories, teaching methods, and education reform.
Stimulus is the light on a insect and moves towards the light . If the insect doesn’t respond to the bright light then you know that the light is not a stimulant figure for the insects to respond to
