Freshwater fish are in a hypotonic environment. "Freshwater fish have chloride cells, which vigorously move chloride ions into gills, followed by sodium ions."
<h3>What is hypotonic environment?</h3>
In biology, the term refers to a cell environment that contains less solute than the cell's cytoplasm.
When a cell is placed in a hypotonic surroundings, osmosis causes a net water flow into the cell, which has the potential to cause the cell to burst and cease functioning.
Solutions and cell surroundings are also classified as hypotonic, hypertonic, or isotonic in terms of osmotic pressure.
Some key features regarding the hypotonic environment are-
- Plants can grow in hypotonic conditions. Their cells have rigid cell walls that keep them from bursting or lysing.
- The cytoplasmic pressure against the cell wall prevents the plant from wilting as well as losing its shape. This is known as turgor pressure and osmotic pressure.
- Cells without cell walls, on the other hand, swell and, if the surroundings is adequately hypotonic, burst (lyse) & die (as to cytolysis).
- Some protists (including such Paramecium) counteract this by using contractile vacuoles, which rapidly pump water out of the cell.
- Other organisms eject solutes from the cell in order to reduce the concentration gradient of a solute in the cell and, ideally, create an isotonic environment. Protists are microorganisms that only exist in hypotonic environments.
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False. Having a high level of extroversion is a predictor of strong leadership since people who are like this tend to be more socially active. They are confident, enthusiastic, talkative and energetic. They spend more time with a group of people rather than being alone. However, too much extroversion has also a disadvantage. If a person is so assertive, it will come to a point that he/she will become righteous and self-centered. -ahnnahly
Answer:A trait evolves in anticipation of a future environmental change
Explanation:
A trait is developed to accommodate or adapt to a current environment.
Development of new traits occurs in species so that they can survive the current conditions, they develop traits that are needed to survive at that moment.
A trait may need to change or be altered in the future because the future is unknown , conditions can change and call for adjustment of some traits that have been acquired.
So traits evolves to accommodate the current environment not the future .
Answer:
Magellan's primary goal was to prove that by sailing to the West he can reach Asia.
Explanation:
Magellan's expedition (1519-1522) was one of the most famous ones during the Age of Exploration. He continued what Columbus and other started and that is to find water route to Asia by sailing to the West. He managed to circle practically the whole Earth, although he died eventually during expedition, and his expedition is often regarded as a prove that the Earth is not flat.
50 is the approximate amount of inches