That's correct, marine protozoa do not have contractile vacuoles. Contractile vacuoles are typically found in freshwater protozoa and serve to regulate water balance by expelling excess water from the cell. Marine protozoa have adaptations to maintain water balance in a high-salt environment without the need for contractile vacuoles.
Marine water has a higher concentration of salt compared to fresh water, which creates a more stable osmotic environment for marine organisms. As a result, marine organisms do not need contractile vacuoles to regulate water balance and remove excess water, as they do not face the same risk of swelling and bursting due to osmotic pressure.
Osmoregulation in protozoans like Paramecium is carried out through contractile vacuoles. These organelles collect excess water and expel it from the cell to maintain osmotic balance. The contractile vacuoles help prevent the cell from bursting due to excessive water intake.
Marine amoebae live in a saltwater environment. If the vacuoles take in too much salt, it'll suck all the liquidy stuff out of the amoeba itself. Freshwater amoebae are in a freshwater environment so they don't have to worry about that.
A freshwater amoeba is more likely to have contractile vacuoles because it needs a mechanism to regulate its internal water balance in a hypoosmotic environment like freshwater where water constantly enters its cell by osmosis, whereas a marine amoeba inhabiting a hyperosmotic environment does not face the same water influx issue.
That's correct, marine protozoa do not have contractile vacuoles. Contractile vacuoles are typically found in freshwater protozoa and serve to regulate water balance by expelling excess water from the cell. Marine protozoa have adaptations to maintain water balance in a high-salt environment without the need for contractile vacuoles.
Marine water has a higher concentration of salt compared to fresh water, which creates a more stable osmotic environment for marine organisms. As a result, marine organisms do not need contractile vacuoles to regulate water balance and remove excess water, as they do not face the same risk of swelling and bursting due to osmotic pressure.
Tokophyra are marine dinoflagellates that can produce bioluminescence. They are unicellular organisms found in various marine environments and play a role in the ecosystem as a food source for other marine organisms.
Osmoregulation in protozoans like Paramecium is carried out through contractile vacuoles. These organelles collect excess water and expel it from the cell to maintain osmotic balance. The contractile vacuoles help prevent the cell from bursting due to excessive water intake.
Marine amoebae live in a saltwater environment. If the vacuoles take in too much salt, it'll suck all the liquidy stuff out of the amoeba itself. Freshwater amoebae are in a freshwater environment so they don't have to worry about that.
A freshwater amoeba is more likely to have contractile vacuoles because it needs a mechanism to regulate its internal water balance in a hypoosmotic environment like freshwater where water constantly enters its cell by osmosis, whereas a marine amoeba inhabiting a hyperosmotic environment does not face the same water influx issue.
Marine protozoa may not have a contractile vacuole because they are adapted to live in a consistently isotonic environment, with the same salt concentration inside and outside their cells. Thus, they do not need a contractile vacuole to regulate water balance since there is no constant need to expel excess water.
Protists are typically unicellular organisms with a diverse range of characteristics and behaviors. They can be found in a variety of environments, including freshwater, marine, and terrestrial habitats. Many protists are important in the food chain as primary producers or as consumers.
Algae are a diverse group of photosynthetic organisms that can be unicellular or multicellular. They include seaweeds, pond scum, and phytoplankton. Algae can be found in various habitats, from freshwater to marine environments.
The study of marine organisms is called as marine Biology. Hope this helps!
The foraminifers are unicellular organisms of the animal kingdom. Foraminifers are any of several large marine protozoans, of the subphylum Foraminifera, that have a calcareous shell with many holes through which pseudopodia protrude.
Organisms can get rid of excess water through processes like urination, sweating, or evaporation through respiratory surfaces like lung and gills. Plants remove excess water through transpiration, where water evaporates from the surfaces of leaves. Some animals, like marine species, have specialized excretory organs that help regulate water balance in their bodies.