Answer:
It lacks a wall thus use the contractile vacuole to collect and expel excess water from the cell.
Explanation:
- The contractile vacuole regulates the quantity of water inside a cell through a process known as osmoregulation.Osmosis constantly drives water in the cell since it is enclosed by a semipermeable membrane that can not keep the water out thus it is needed to prevent rupturing of the cell due to excess water in the cell.
Answer:
Radioactive Elements
In elements with more than 83 protons, all of the isotopes are radioactive. ... The force of repulsion among all those protons makes the nuclei unstable. Elements with more than 92 protons have such unstable nuclei that they don't even exist in nature.
Explanation:
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<h2>Answer is option "B"</h2>
Explanation:
- Our brain requires an enormous measure of vitality and so as to meet this needs the progression of blood must be accurately arranged to guarantee that oxygen is being conveyed where it is required and when it is required.
- Vitality in the mind is created solely from a type of digestion that requires oxygen. However, neurons just keep up a little save of vitality and these cells require a constant inventory of oxygen, particularly when the cells are terminating and speaking with their neighbors.
- Blood dashing through a brain district's trap of vessels is an indication that nerve cells in that region have kicked vigorously. The blood races to dynamic territories to supply terminating neurons with the oxygen and glucose they require for vitality.
- Hence, the correct answer is option B "Active areas of the brain take up more oxygenated blood than they need for their energy requirements"
Answer:
Nichrome is usually used as the rod to heat water using electricity. It is an example of Nickel and belongs to the element Nickel in the periodic table.
Explanation:
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Answer:
Cell culture can be used toproduce fat-soluble vitamins. Cell culture can be used to producesteroid hormones. Cell culturecan be used to produce clones.Cell culture can be used toproduce complex proteins
Explanation:
