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Dafna1 [17]
3 years ago
12

Guys I have a presentation next class and I'm scared of people judging me please help ​

Health
1 answer:
boyakko [2]3 years ago
7 0

Answer:

ookai well first dont even look at them..look at a wall or something over them so you dont make eye contact. take a few deep breaths and count or listen music while you wait

just calm urself down before you do it youll be alright

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Eating to much of what increases the risk of heart disease
evablogger [386]

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Type of fat eaten

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saturated and trans fats increase blood cholesterol and heart attack rates. Polyunsaturated and monounsaturated fats lower the risk of heart attacks.

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In cardiac muscle, calcium ions do not bind to troponin molecules. calcium ions are not released from the sarcoplasmic reticulum
strojnjashka [21]

Answer:

Option). about 20 percent of the calcium ion required for contraction comes from outside the cell.

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For contraction, about 20 percent of calcium ions are supplied from outside of the cell, while rest of the calcium ions are released from SR (sarcoplasmic reticulum).

Thus, the correct answer is 'forth option.'

3 0
3 years ago
It is the reduced ability of red blood cells to deliver oxygen to tissues.
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Hi !

It is the reduced ability of red blood cells to deliver oxygen to tissues.

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