What organisms have two flagella?
Euglena
Which of the following is the freshwater protist?
Freshwater animal-like examples include amoeba, heliozoans, and paramecium. Plant-like protists are forms of algae, and they make their own food through photosynthesis. Examples include golden algae, diatoms, Euglena, and green algae.
What problem is faced by single celled organisms that live in freshwater?
Their bodies tend to take in too much water They have no way of controlling their tonicity Only salt water poses problems for animals that live in it Their bodies tend to lose too much water to their environment.
How do freshwater protists Osmoregulate?
Freshwater protists like a paramecium are osmoregulators. They expel excess water by means of a contractile vacuole. As we’ll see, they need to prevent water loss from their cells. No matter what the environment, osmoregulation depends upon active transport across cell membranes.
Do freshwater fish drink water?
Freshwater fish never drink water because their bodies are saltier than the surrounding water. Osmosis draws water into the fish’s body through its skin and gills, unlike saltwater fish, where the water is drawn out of the body.
How do protists maintain water balance?
-Protists maintain water balance with the contractile vacuole, which collects water entering the cell via diffusion, and once filled, contracts and discharges water through pores.
Where would you expect a freshwater fish to get most of its water from?
Freshwater fish- gain water through gills and skin while losing ions to the water, they do not drink water. osmotic water gain through gills and surface of body. Saltwater fish- losses water through gills and skin while taking in excess ions from seawater, they need to drink lots of water.
Do fishes pee?
Like you, fish have kidneys. Kidneys help the body make urine. A lot of fish get rid of the pee through an tiny opening, called a pore, that’s near their rear ends—and in some fish, waste also goes out through the skin or the gills.
What Colour is fish pee?
Because when it comes to keeping ocean ecosystems in tip-top shape, pee is liquid gold. Without urine from fish, whales and other critters, coral reefs and seagrass meadows would struggle. Kelp forests might wither. And there would be fewer phytoplankton, the microscopic algae that underpin almost all marine food webs.
Does a fish go pee poem?
When a fish is swimming in the lake, will it wee wee while on its break? When a salmon goes upstream, will it take a leak before it goes full steam?
Why do freshwater fish urinate more than saltwater fish?
Freshwater fish will passively intake water from their environment and then, as their insides are saltier than their surroundings, will excrete a diluted urine. Saltwater fish have to drink water more actively and, as their surroundings are saltier than their insides, will expel a more concentrated urine.
How does a fish pee?
Fish urinate either through their gills or through a “urinary pore.” The latter eliminates urine that has been filtered via the kidneys. Saltwater varieties excrete most urine through the gills, while freshwater fish do so through the urinary pore. Saltwater fish take in a great deal of salt and must excrete it.