Answer:
no
Explanation:
a compound has 2 or more substances.and can be broken down.
a pure substance can't be broken down any further
Mountain range; when plates are pushed together, they cause rock to push up. After thousands of years, a mountain will be formed after the molten rock cools.
Answer:
the fish experienced an evolutionary change because of genetic drift
Explanation:
Answer:
5
Explanation:
The number of protons is the same as the atomic number
Answer:
sarcoplasmic reticulum deteriorates and ATP production is stopped
Explanation:
Rigor mortis is the third stage of death characterized by stiffening of joints and muscles in body. The stiffening occurs because muscles are not able to return to the relaxed state. There are two reasons for rigor mortis, depletion of ATP and increase in calcium concentration in cytosol. Due to these factors the actin-myosin crossbridge is not able to break and the muscles remain in contracted state.
Sarcoplasmic reticulum deteriorates and calcium is released into the cytosol. Sarcolemma ( covering of muscle fiber ) also breaks down releasing extra calcium into the cytosol. Calcium is responsible for formation of actin-myosin cross bridge and when its concentration increases the bridge is formed continuously leading to stiffening of muscles and joints.
