Paramecium needs contractile vacuole due to its different environment from other protozoan that lives in salt water.
<h3>
Need of contractile vacuole for paramecium</h3>
In salt water, the solute concentration outside the cell is more than inside the cell so the water flows out of the cell down the concentration gradient. Therefore contractile vacuoles are not required for expelling water for most protozoan living in salt water.
While on the other hand, paramecium lives in fresh water so contractile vacuole is required for removing excess water so we can conclude that paramecium needs contractile vacuole due to its different environment from other protozoan that lives in salt water.
Learn more about contractile vacuole here: brainly.com/question/15648413
Hey there!
Here are your answers:
<u><em>1. The proper answer to this question is "the Sun".</em></u>
Reason:
<u><em>The Sun is the ultimate source of energy for organisms it allows plants to use photosynthesis </em></u><span><u><em>to convert light energy into energy for that organisms and other organisms.</em></u>
<em>Therefore the answer is the Sun.</em>
Here is your second answer:
<u><em>2. The proper answer to this question is "</em></u></span><u><em>photosynthesis".</em></u>
Reason:
<u><em>Photosynthesis is the process that plants use to change (convert) light energy into energy (that other organisms can use). For example a apple tree uses </em></u><span><u><em>photosynthesis to make apples for humans, and other organisms to consume for energy.</em></u>
<em>Therefore the answer is </em></span><span><em>photosynthesis!</em>
<em>To sum up the answers are:</em>
<em>1.Sun</em>
<em>2.P</em></span><span><em>hotosynthesis</em>
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit</span>
When we see chiasmata under a microscope, that lets us know that prophase I has occurred. During this phase of meiosis, the nuclear envelope breaks up and disappears, and so does nucleolus. The chromosomes become visible at this point.
Pilla has skeleton made up of bone