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
Everything you ever wanted to know about a penguinâs habitat. A penguinâs habitat is naturally cold and watery. All varieties of the penguin are native to the southern hemisphere, and in fact, they can be found on every continent in the southern hemisphere.he penguinâs habitat can range from a sheet of ice to warm, sandy beaches, depending on what kind of penguin it is. However, one thing that is constant across all types of penguins is the need for a body of water nearby.
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.