Answer:
The sarcoplasmic reticulum contain calcium ions in skeletal muscles which is involved in muscle contraction.
Explanation:
Sarcoplasmic reticulum is an intracellular system of closed saclike membranes involved in the storage of calcium in skeletal muscle cells. The sarcoplasmic reticulum regulates the concentration of calcium and determine muscle contraction.
It is only 10% efficient because the majority of the energy is converted. Some is lost in heat, some is not processed at all. Mostly a lot of energy is used to regenerate ATP.
Every organism has a unique ecosystem within which it lives. This ecosystem is its natural habitat. This is where the basic needs of the organism to survive are met: food, water, shelter from the weather and place to breed its young. All organisms need to adapt to their habitat to be able to survive.
True<span>. </span>Through his<span> experiments, </span>Mendel was able to prove<span> some aspects of the </span>blending theory of inheritance<span>. </span>True<span>. A Dd genotype has two different alleles. </span>True<span>.</span>