Um how long do u have ...............
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.
Answer:
D
Explanation:
The immune system can protect you from bacteria and viruses, so I believe the answer would be D.
Answer:protonema
Explanation:
Mosses have protonema that develops from germinating spores,which is a multicellular filament. This filament has high chlorophyll content and hence can photosynthesis generating food for its growth.
A protonema may produce leafy shoot and this is done under a favourable condition, this shoot later develop into bud.
There are many names for this process but the most popular one is splicing.