Answer:
Explanation:
If you think of the double helix structure as a ladder, the phosphate and sugar molecules would be the sides, while the bases would be the rungs.
Answer:
B. An Estuary
Explanation:
it is a coastal body of water surrounded by land
The reason the socks stick together, is because electrons from one fabric rub off onto another fabric by friction.
Vertebrate striated muscle<span> contraction is controlled (regulated) by the action of the proteins troponin and tropomyosin on the actin filaments. Nervous </span>stimulation<span>causes a depolarisation of the </span>muscle<span> membrane (sarcolemma) which triggers the</span>release of calcium<span> ions from the </span>sarcoplasmic reticulum<span>.</span>
