<h2>Answer:</h2>
If you go a bit overboard and feel a sudden pinch and you start bleeding, It means that something penetrate in your skin and torn off your blood vessel so that you start bleeding.
May be there was any pin or sharp needle thing was there in board that pinch into your skin and your epidermis could not resist that and it is no longer intact and you created a wound on your skin.
Epidermis the surface epithelium of the skin of an animal, overlying the dermis. and in this case it is wounded by that pin.
Bison are big mammals that belong to the family Bovidae. Male bison charging each other shows the competition among organisms of the same species.
<h3>What is the competition?</h3>
Competition is the ecological relationship between the organism of the ecosystem that can be positive, neutral or negative. It can be between species or among the member of the species.
Two bison fighting each other shows the competitive relationship between both of them as they both belong to the same species and can fight for territory, food, resources, reproduction and many others factors.
Therefore, the Bison charging shows competitive relationships among the same species.
Learn more about the competition here:
brainly.com/question/1872222
I am guessing its the chlorophyll. <span />
Its "C"Oxygen because it is used as oxidative phosphorylation
