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Answer:
\rB. nutrients that are essential cannot be made by the body, so they must be obtained from food.
Explanation:
If we look at the definition of essential fatty acids, it clearly states that these are fats which human body cannot prepare but are essential for proper functioning of body. Since body cannot synthesize them on their own, therefore we must obtain them through a diet rich in them. Two main essential fatty acids are:
- Alpha-linolenic acid (omega-3)
- linoleic acid (omega-6)
They play essential functions in body sucg as :
Production of hormones
Better adrenal and thyroid activity
Regulation of inflammatory and immune responses, function and development of brain.
Supporting the development of healthy skin and hair.
Option B is the best option.
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Answer:
<u>D. Segmented worms may be covered in setae.</u>
Explanation:
Setae are hair like structure structures present only in segmented worms such as earthworms. It prevents earthworms to slip back from the surface. Setae are absent in Roundworms and Flatworms.
Other options in the question can be common in all of these Worms.
Answer:
5S refers the sedimentation velocity of the molecule in ultra-centrifuge. It is measured in Svedberg units (S).
Explanation:
5S ribosomal RNA is a large unit which is an integral part of all of the living cells with the exception of the mitochondrial cells of the fungi and animals.
Answer: Creating more wind farms results in a reduction of fossil fuel use
Sustainable development is to make earth a better place for everyone, without destroying the possibilities for the next generations. There are many Eco systems that need to be in balance for us to live here, the climate system is one of them. This system ensures that the climate is correct and the atmosphere emits the right amount of solar energy. With the harmful greenhouses gases (such as Carbon dioxide) we clog the atmosphere, this changes the temperature of the earth that can affect our development
How we use energy is incredibly important. Oil and coal are samples of energy that we may run out of, using energy that renew themselves (wind farms) is good for the planet. Wind, water and sun are sustainable.