Answer:
A genus ranks just above the species in an organism's taxonomic hierarchy. A genus is made up of any number of species, while a species is composed of any number of subspecies or breeds.
Explanation:
Answer:
New solids and gases are formed,including sugar and oxygen
Single-celled organisms exchange gases directly across their cell membrane. However, the slow diffusion rate of oxygen relative to carbon dioxide limits the size of single-celled organisms. Simple animals that lack specialized exchange surfaces have flattened, tubular, or thin shaped body plans, which are the most efficient for gas exchange. However, these simple animals are rather small in size.
True atoms achieve stability
