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Luba_88 [7]
3 years ago
14

Describe the main features of the major phyla of multicellular algae

Biology
1 answer:
noname [10]3 years ago
3 0
Many different species of blue-green algae occur in lakes
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Jupiter has a similar composition to the sun. Why is the sun a star while Jupiter is not?
irakobra [83]

The correct answer is (b) Jupiter has mass less than that of sun which cannot generate enough pressure which can start hydrogen fusion. Jupiter has similar composition as both are entirely made up of hydrogen and helium. They both differ in the core and mass. The mass of Jupiter is so small as compared that it would not be able to generate enough pressure to start hydrogen fusion. Jupiter's core is made of metallic hydrogen and the core of sun is so hot that the hydrogen splits into electrons and protons. This generates hydrogen fusion.

Thus, Sun a star and Jupiter is not a star.





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3 years ago
Cellular organelles which use chemical energy stored within the covalent bonds
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Organelles that use chemical energy stored within the covalent bonds of
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3 years ago
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Which of the following is TRUE?
Umnica [9.8K]

Answer:

a. Glucagon is released by the beta cells of the pancreatic islets of Langerhans.

Explanation:

When the body is fasting, the pancreas releases glucagon so that your body can produce glucose. Glucagon is a protein hormone made and secreted by alpha cells from pancreatic islets (or islets of Langerhans).

The islets of Langerhans are a special group of cells in the pancreas that produce not only glucagon, but also insulin. These substances act as important regulators of sugar metabolism.

3 0
3 years ago
Why does ethanol becomes cloudy/white when testing fat
ki77a [65]

Answer:

Ethanol is known as a fat solvent, and the cloudy or white color that it acquires when testing fat is due to the fact that this test includes the addition of water, forming an emulsion.

Explanation:

<u>The emulsion test for fats</u> is a test used to show the presence of these in some substances or foods.

Under normal conditions, fats are miscible - they can be dissolved - in ethanol, an alcohol, but not in water.

This test consists of dissolving the substance to be tested in ethanol, and then adding water. The principle by which the emulsion test is governed is that ethanol allows a certain amount of fat to dissolve in water, forming a cloudy or whitish emulsion.

Learn more:

Differences between emulsion and solution brainly.com/question/6677364

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3 years ago
True or false type b blood has a antigens and anti-b antibody
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False. Type B blood has B antigens and anti-A antibodies.
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