Answer:They have a large number of mitochondria.
The large Intestine is the organ that absorbs excess water from undigested food prior to its release from the body as a solid food.
I think the answer is either B or C, hope this helps! Sorry if it doesn't!
Answer:
increasing the number of molecules that have sufficient kinetic energy to react.
Answer:
The fossils that provide information on the formation of an oxygen-rich atmosphere are the stromatilites from the Precambrian era. These are layered and columnar fossils consisting mainly of cyanobacteria which were the original life form back then. These bacteria took in carbon dioxide and produced oxygen by photosynthesis as early as 2.5 billion years ago (the earth is about 4.5 billion yrs old).
Explanation:
