Tutor profile: Kim B.
Subject: Religious Studies
What is peaceful conflict transformation?
Peaceful Conflict Transformation does not mean be passive, and do not engage. Instead, it takes great courage. At its best, this manner of negotiation uses non-violent demonstrations, and non-violent language that requires people to confront themselves, and call attention to the inequities that are leading to the conflict.
How does a virus make you sick?
Viruses invade our cells by inserting their genetic material. That's pretty much all a virus is -DNA or RNA in a protein coating. Once that genetic material is in our cells, our cells make more viruses. Eventually, there are so many viruses, that the cell bursts, and the viruses go on to infect other cells. That is the life cycle of a virus, but that is not what make us sick when we are infected by them. When our immune system detects a virus, it puts certain measures into effect to try and kill the viruses. Mucous production in our nose and respiratory tract increases, to try and keep new viruses from entering. We sneeze and cough to try and get viruses out of the respiratory system before they can enter the bloodstream, and remove mucous that has dripped into the lungs. As a last resort, our immune system increases the body temperature to try and kill the invaders. It is this, stuffy nose, coughing and fever we think of when we say we're "sick."
Explain how the integumentary, nervous, skeletal and muscular system work together to move a finger away from a hot stove.
The integumentary system (in this case, the epidermis - skin) provides definition of what is "my finger" and what isn't. It also houses the afferent nerves that tell you the stove is hot. The nerve receptor in your finger notices the heat, and sends a signal to the brain. This signal is called an action potential. It moves along the nerve cell via the exchange of sodium and potassium across the cell membrane. Once that action potential reaches the brain, those neurons determine that the finger needs to be moved away from the heat source. An action potential is then sent to the efferent nerves connected to the specific skeletal muscles in the hand or arm, that move bones in your hand and finger. The action potential jumps to the muscle at the neuro-muscular junction, causing the sarcomeres (the parts of muscles that contract) to shorten the muscle, thereby moving the bones to which the muscles are attached. (Where the muscle attaches to to bone is called an insertion site.). If those muscles are attached to phalanges (finger bones) your finger curls away from the heat. If those muscles are attached to carpal or metacarpal bones (carpals are in the wrist, metacarpals in the palm of your hand), your wrist bends to move your whole hand away from the heat source.
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