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In-s [12.5K]
4 years ago
9

Which two kingdoms consist only of cells without nuclei?

Biology
1 answer:
trapecia [35]4 years ago
8 0

Answer:

Eubacteria and archaebacteria

Explanation:

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A scientist hypothesizes that the lack of chinook salmon is negatively affecting the orca population. Would this hypothesis need
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Answer: Yes

Even if there is an abundance of fish in the oceans, and that even if the general rule is that big things eat smaller things, it is not true with the <span>orca population (whales).  Whales depend on chinook salmon for survival, and truly, the hypothesis that the lack of chinook salmon negatively affecting the orca population is true.</span>

<span>However, for a hypothesis to become lifted to the ranks of a theory once it passes a series of tests. Other scientists may claim its correctness, other may oppose to it.  So there is a need to </span><span>differentiate between the hypothesis on checking and competing hypotheses.</span>

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Witch of these is a physical property a.mallabe b.easy to digest c.does not burnn d.becomes moldy
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4 years ago
Water strider able to walk on the surface of the lake
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The point where separation of the DNA occurs is called the replication fork.
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True

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3 years ago
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Do you think that a high-sodium diet could damage the body over time? Why or why not?
kodGreya [7K]

Answer:

A high-sodium diet could damage the body over time as it may cause hypertension, heart failure, kidney disease, stroke etc.

Explanation:

Human body needs a small amount of sodium to perform functions like maintaining the proper balance of water and minerals, nerve impulse transmission, and contraction and relaxation of muscles. It requires about 500 mg of sodium daily to perform these important functions.

But a high-sodium diet can lead to hypertension (high blood pressure), heart disease, kidney disease and stroke.  It can also cause depletion of calcium from the bone resulting in osteoporosis. Excess sodium in the blood causes the body to hold onto more water to dilute the sodium, which increases the amount of fluid surrounding the cells and the volume of blood in the bloodstream. The increase in blood volume causes more pressure on the blood vessels and the stiffening of blood vessels, which leads to high blood pressure (hypertension) and more work for the heart. This causes more burden to the heart resulting in heart attack and stroke.

Commercially processed foods like bread, pasta, soups, chips etc contains high sodium than naturally processed food like fruits, vegetables, whole grains, nuts, dairy products etc.

The ideal intake amount of sodium for a normal, healthy individual is 2,300 mg per day. For persons having high blood pressure or cardiovascular disease, the recommended amount is 1500 mg or less per day.

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