In airports, the control tower functions in directing air traffic and keeping all flights running smoothly like a command center. which part of the cell is analogous to this command center?
a. plasma membrane
b. nucleus
c. mitochondria
d. vacuole

The correct answer is B. Nucleus

Explanation:

In cells, the nucleus is the organelle in charge of commanding the different activities in the cell, because of this, as control towers in airports in cells the nucleus is considered as the administrative center or control center. Indeed, the nucleus is in charge of regulating reproduction, metabolism, growth, etc. besides containing the genetical information. Additionally, the nucleus is surrounded by a membrane and can be found in almost all organism except in bacteria or similar that do not have a nucleus and are considered as prokaryotes rather than eukaryotes. Considering this, the part of the cell that is analogous to the command center of an airport is the Nucleus.

4.) metal

"-the movement of carbon from the nonliving environment into living things and back to the environment

-carbon is the essential component of proteins, fats, and carbohydrates (which make up all organisms)

-carbon exists in air, water, and living organisms

-producers convert carbon dioxide in the atmosphere into carbohydrates during photosynthesis

-bacteria in the atmosphere cycles through the system in filtration units

-in cellular respiration, carbon is released back into the atmosphere as carbon dioxide

-some carbon is stored in limestone (forming one of the largest "carbon sinks" on earth)

-largest carbon reservoir on earth= limestone

-carbon stored in the bodies of organisms as fat, oils, or other molecules may be released into the soil or air when the organism dies

-this may form deposits of coal, oil, or natural gas (fossil fuels, which increased the atmospheric carbon dioxide)

-fossil fuels store carbon left over from bodies of organisms that died millions of years ago

-they are located in the surface of earth, deep within the earth and beneath the ocean floor."