Lets start over and go through the options from the starting.
Option A. they are all halogens.
oxygen is not a fluorine is halogen, chlorine is halogen but oxygen does not belong to halogen. Oxygen belongs to <span>chalcogen group.
So it's not option A.
Option B. they react easily with metals.
These metal are considered the most reactive metals in the period table.
So we can say that this can be true.
Option C. they are similar to noble gases.
We know that these element are not similar to noble gases. These elements are not in the gaseous state when formed.
So it's not option C.
Option D. they are all non-metals.
We all know that these elements are metal. So we can take it out immediately.
</span><span>So it can't be even D.
So, our correct answer will be B.
Hope this helped.. :)
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Deliver Oxygen and nutrients and to remove carbon dioxide and other waste products
Answer:
A patient with a myocardial infarction cannot fully recover, despite the drugs he takes because the drugs prevent another heart attack, but other damage has already occurred.
Explanation:
Myocardial infarction is due to a blockage of the coronary arteries, with an absence of blood supply to areas of the heart muscle that end up dying.
A person with a myocardial infarction will not be able to recover the damaged areas of his heart —since the damage has occurred— but <u>drugs are useful to decrease cardiac risk factors, improve coronary circulation and prevent a new attack</u>.
The other options are not correct because:
- <em><u>Myocardial infarction drugs are used in people with cardiovascular disease</u></em><em>, not in very active healthy people.</em>
- <em>If a </em><em><u>drug restores blood flow</u></em><em>, it does so throughout the body.</em>
- <em><u>The drugs cannot rebuild the cells that died, but they can limit the death of more</u></em><em>, does not explain why the patient with a heart attack does not fully recover.</em>
Dementia because as people age they have bad memory and impairments.
Answer:
D. Fixed percentage of RM method
Explanation:
When we measure muscular endurance it is very important to make it equal to all participants. This can be done using a fixed percentage of a one-repetition maximum or 1RM. We can set it to 70% so a person who can lift 100kg would have to lift 70kg for as many repetitions that they can. This way a large and small person would be equal in weight but not in endurance.