D Type. He is changing the type of activity he is doing for his bike-riding routine.
Answer:
When heart rate or rhythm changes are minor
Your heart rate or rhythm can change when you are under stress or having pain. Your heart may beat faster when you have an illness or a fever. Hard physical exercise usually increases your heart rate, which can sometimes cause changes in your heart rhythm.
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maybe by composting, it could help with the environment
Answer:
<em>Antibodies attach to a specific antigen and make it easier for the immune cells to destroy the antigen. T lymphocytes attack antigens directly and help control the immune response. They also release chemicals, known as cytokines, which control the entire immune response</em><em>.</em>
Explanation:
i Think
A junction between two neurons etc.....
<em>G</em><em>O</em><em>O</em><em>D</em><em>L</em><em>U</em><em>C</em><em>K</em>
