Answer:
Contraction is prevented
Explanation:
The sarcomere is the basic contratile unit of muscle i.e the unit responsible for contraction in the muscle and it consist of two main protein actin; which forms filaments involved in contraction and myosin; a motor protein responsible for contraction. Calcium interacts with these protein and in the absence of Ca, contraction is inhibited (sacromere with not be able to undergo contraction)
Answer:thats too hard sorry
Explanation:sorry but i get points so haha
Answer:
Activation energy.
Here’s why:
All chemical reactions, even exothermic reactions, need a certain amount of energy to get started. This energy is called activation energy. For example, activation energy is needed to start a car. Turning the key causes a spark that activates the burning of gasoline in the engine.
<span>Mutagen is an agent that causes DNA mutations. UVA radiation penetrates
deep into the skin and acts as a mutagen. UV light is the most common source of
radiation that affects DNA, but it is a weak radiation and it penetrates only
the surface cells of your skin.</span>