Plant cells are eukaryotic cells that differ in several key aspects from the cells of other eukaryotic organisms. These distinctive features include the following: A large central vacuole, a water-filled volume enclosed by a membrane known as the tonoplast that maintains the cell's turgor, controls movement of molecules between the cytosol and sap, stores useful material and digests waste proteins and organelles. A cell wall composed of cellulose and hemicelluloses, pectin and in many cases lign
Penguin Natural Habitat. The habitat for penguins is going to depend on the type you are talking about. Some of them are able to live in the coldest parts of the world. Others live very close to the equator where it is quite warm.All penguins though reside within the Southern hemisphere.They are found on every single island there.he habitat for penguins is going to depend on the type you are talking about. Some of them are able to live in the coldest parts of the world. Others live very close to the equator where it is quite warm.
Penguins are aquatic, flightless birds that are highly adapted to life in the water. Their distinct tuxedo-like appearance is called countershading, a form of camouflage that helps keep them safe in the water. Penguins do have wing-bones, though they are flipper-like and extremely suited to swimming. Penguins are found almost exclusively in the southern hemisphere, where they catch their food underwater and raise their young on land.