Answer:
The vein
Explanation:
Veins have much thinner walls than do arteries, largely because the pressure in veins is so much lower.Veins can widen (dilate) as the amount of fluid in them increases.
I believe it is a scab. Hope it helps! If you think this answer deserves the brainliest, then that would be very much appreciated!
Answer:
Heat Energy
Explanation:
When energy is transformed from one form to another, or moved from one place to another, or from one system to another there is energy loss. This means that when energy is converted to a different form, some of the input energy is turned into a highly disordered form of energy, like heat.
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One interesting example here is when you have a certian species of birds for example and all birds from one same species have a different pattern of how their wings and body is colored. This goes for dogs and other animals as well. All of these are examples how variation withing a species related to Darwin's theory of evolution.
This is an easy one you need to just ask teacher for help