Sponges continually pump water through the ostea into an internal system of canals and expel it from the osculum, trapping food and removing oxygen from the water. They use collar cells in these canals to flip flagella, creating the pumping action that forces the water through their structure and trapping tiny bits of food.Continue Reading
The Ocean Research Group says sponges are filter feeders that can consume particles as small as bacteria as well as much larger ones. They consist of an outer layer of flat epithelial cells, a middle gelatinous layer with cells that are able to migrate throughout the layer, and an inner layer containing the flagellated and collar cells.
Sponges, once thought to be plants, are animals and require oxygen to live. They transfer waste, including carbon dioxide, to the water as it passes through the canals as a part of their respiration process.
Reference.com reports there are more than 4,500 known species of sponges, all marine, with the exception of one family of freshwater sponges. They prefer shallow, temperate water, where most sponges attach themselves to rocks and live the remainder of their lives. Freestanding sponges, such as the barrel sponge, grow large enough to fit a human inside.Learn more about Biology
Plants are important to animals as animals rely on them for food, oxygen and habitat maintenance. Without plants, animals would not be able to meet their basic needs. As much as animals depend on plants, plants depend on animals too.Full Answer >
Photosynthesis is the process in which plants use light to convert carbon dioxide (CO2) and water (H2O) into simple sugars (C6H12O6) and oxygen (O2). Six molecules each of CO2 and H2O turn into one molecule of C6H12O6 for plant use and six molecules of O2 exhausted into the atmosphere.Full Answer >
Photosynthesis and respiration are complementary processes that both involve carbon dioxide, water, glucose and oxygen, and this is what they have in common. Essentially, they are the same reactions, although the reactions occur in reverse. Photosynthesis converts water and carbon dioxide into glucose and oxygen, while respiration converts glucose and oxygen into carbon dioxide and water.Full Answer >
Fish require oxygen for survival just like other animals, but they filter it from water using specialized organs called gills. A fish draws in oxygen-rich water and passes it through its gills. The organs absorb the oxygen from the water, carrying it into the fish's bloodstream for use by its organs.Full Answer >