Answer:
<h3>A. protection </h3>
Explanation:
<h3>I hope l helped you. </h3><h3>Please follow me. ❤❤</h3>
Answer:
38.3 feets
Explanation:
Given :
From the diagram attached below ; we could apply trigonometry to obtain the height of the flagpole:
Tan θ = opposite / Adjacent
θ = 38° ; opposite = height of flagpole, h
Adjacent = 49 feets
Tan 38 = h / 49
0.7812856 = h / 49
Height of flagpole = 0.7812856 * 49
Height of flagpole = 38.282
Height of flagpole = 38.3 feets
The sa node <u>spontaneously</u> fires at regular intervals.
<h3>What is SA node?</h3>
SA node; an accronym for sinoatrial node is a mass of specialized issue situated in the heart; specifically in the right upper chamber of the heart.
This sinoatrial node help the heart generates electrical stimulus regularly usually between 60 to 100 times per every minutes
<h3>What is heart?</h3>
The heart is a muscular organ and the only organ in the known which helps to pump blood to various parts of the body
- Helps in the mentenance of blood pressure
- It helps to pump oxygenated blood
- It helps to transfer hormones
- Helps to receive deoxygenated blood as well
Learn more about SA node of the heart:
brainly.com/question/9058294
The correct answer is D. Push-ups.
<em>Push-ups is the only activity which strengthens muscles and can be completed in school.</em>
Exercise helps muscles to be at rest and also makes someone feel reinvigorated. There are some exercise which are strength-building.
For example, jumping sacks, forward lunges, push-ups, arm extension and plank.