Correct answer: A) A small structure within the cell that serves specialized functions
Organelles are small,specialized structures found inside the cell which perform a specific task and help in the functioning of the cell.
Organelles are known to be found in all the eukaryotic cells. There they serve a essential and specialized functions such as making proteins, getting rid of waste, harvesting energy etc.
Example: Mitochondria, endoplasmic reticulum, nucleus etc.
Answer: Geology played a major role in Darwin's life and scientific work: The formation of volcanoes, the slow subsidence of coral reefs, the rising of the Andes by earthquakes, the fossil relatives to modern species in South America,
Matter cycling is the place where matter moves starting with one structure then onto the next or starting with one spot then onto the next on the earth, and inside its environments. ... Matter additionally cycles normally, and because of human action. Human exercises can cause matter cycling with positive and negative impacts on the regular world.
Well, Thousands of turtles prepare for winter by going deep into the water or by digging a deep burrow. They will slow down and hibernate for as long as the weather is cold. Then when the spring comes, the turtles will warm up and become active again.