Answer:
4
Explanation:
They don't supply oxygen because that is the function of the heart
How long does it take Morgan to lose all the weight he gained in this 30 day project?​
Which of the following are the four elements of fitness programs?
Answer:
The four core elements of exercise are aerobic exercise, strength training, developing core muscles and interval training. Aerobic exercise is all about getting your heart pumping. As you perform aerobic exercises, like walking, running or using an elliptical, your immune system is activated and your stamina increases.
Explanation:
22. We know that tobacco is harmful to the circulatory system because it
1. Is linked to heart disease.
2. Destroys red blood cells.
3. Decreases heart rate.
4. Strengthens the respiratory system.
22 Whatiana
Answer:
Um...
Explanation:
Answer:
1. Is linked to heart disease
Explanation:
We automatically rule out numbers 3 and 4 because smoking tobacco actually INCREASES heart rate and weakens the respiratory system. Also, we are talking about the circulatory system, so we automatically know it has something to do with the heart. There is definitely a link to heart disease and this is a lot more devastating than red blood cells. So I'd go with 1, unless your teacher taught you otherwise.
1 Select the correct answer. A chemical process that curls the hair does which of the following? causes the color to change slightly OB. requires weekly touch-ups at home OC. causes hydrogen bonds to move closer together OD. gets washed out after two to three shampoos Reset​
A chemical process that curls the hair causes hydrogen bonds to move together.
What do you mean by hydrogen bonding?In chemistry, a hydrogen bond is a primarily electrostatic force of attraction between a hydrogen atom which is covalently bound to a more electronegative "donor" atom or group.
The hydrogen bond is one of the strongest intermolecular attractions, but weaker than a covalent or an ionic bond. Hydrogen bonds are responsible for holding together DNA, proteins, and other macromolecules.
Hydrogen bonding is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded,
Learn more about hydrogen bonding:
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