B testis, this is were the sperm is produced
A benefit of the carbon cycle is that it is critical to the food chain. The carbon cycle is important to all ecosystems as well as the food chain.
Carbon is an important element in living tissues and in all organic matter. All living things are made of carbon.
Plants use carbon from carbon dioxide gas in the atmosphere to make their own food and to grow. The carbon becomes part of the plant. Plants are consumed by animals. Thus the carbon cycle plays a vital role in the food chain.
<span>The electron transport chain is, in essence , aseries of redox reactions that conclude cellular respiration. during these redox reactions, NAD+ is reduced,which then oxidizes an electron acceptor in the electron transport chain.</span>
I believe your answer is a. cuz the rest of them say lungs and ampibians dont have lungs they have gills
