The single-celled organisms are found in Archaea and Eukarya. The Eukarya believed to be originated from Archaea. Eukarya contains a membrane - bound nucleus while the archea has no nuclear membrane. The answer is B. I hope my answer helps you.
A rise in CALCIUM released from the sarcoplasmic reticulum allows actin to bind to myosin and cause a contraction, which requires ATP energy. ATP is the energy coin of the cell.
Adenosine triphosphate (ATP) is the energy coin that cells use to carry out many metabolic reactions (e.g., reproduction, motion, differentiation, etc).
The sarcoplasmic reticulum is an organelle located inside muscle cells similar to the smooth endoplasmic reticulum.
This organelle (sarcoplasmic reticulum) acts to store calcium which is required during muscle contraction.
Learn more about the sarcoplasmic reticulum here:
brainly.com/question/807239
Color because the higher or lower temp the different color it has
The answer is chloroplasts and i checked the inernet to confirm my answer.
Hope this helps :)