Answer:
Carbon is released from ecosystems as carbon dioxide gas by the process of respiration. Respiration takes place in both plants and animals and involves the breakdown of carbon-based organic molecules into carbon dioxide gas and some other by-products. i hope this helps :)
Https://www.nasa.gov/home/hqnews/2011/jul/HQ_M11-151_Atlantis_STS-135_Landing.html
this page will help a lot
The answer is B. circulatory, respiratory, and nervous systems
Although all systems in the body are interrelated and impact one another, the systems that have the most important roles in regulating blood pressure are the ones in B. The circulatory, obviously, is the most important because it consists of the heart, blood vessels, and blood. When the heart pumps blood, it creates pressure on your arteries. These processes are communicated throughout your body using the brain or nervous system. The respiratory system also works closely with the circulatory system because when oxygen enters the blood, it travels to the heart and is pumped to the rest of the body.
Bacteria are single celled prokaryotic organisms. Prokaryotic means that they do not contain membrane-bound organelles. In simpler terms, they don't have cell parts within their cytoplasm. Bacteria are classified by their shape- round or cocci, rod or bacilli, and spiral or spirilla. Bacteria may also have long whip-like tails called flagella or be covered with small hair-like projections called cilia. Both structures are used for movement. Bacteria may have a cluster of free floating DNA in its cytoplasm called a nucleoid or they may have additional small rings of DNA called plasmids. Lastly, a bacterium have a cell wall made of a special compound called peptidoglycan which can provide an extra layer of protection from many environmental conditions.