What are four examples of things expectant parents can learn from taking childbirth education classes?


Answer 1
Answer: If you look it up it will be the first one to show up on google

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The rib cage has 12 pairs of ribs. Which cartilage attaches the front ends of the first seven pairs of ribs to the sternum? What is the name of these seven sets of ribs?


The first seven pairs of rib bones (beginning at the top of the sternum) are called "true ribs."  They connect to the spine (by ligaments) at the back, and connect to the sternum by costal cartilage in the front.  Costal cartilage is elastic and allows the ribcage to expand during respiration.

Which benefit does fat provide? digestive enzymes short-term energy metabolism boost long-term energy


Fat is an ester of fatty acids. The benefit that fat provides is short-term energy. The correct option is b.

What are fats?

Other terms for fats include "fatty acids" or "lipids." The fat molecules in our body are made up of three molecules joined together. Three molecules combine to form the structure of triglycerides.

The majority of the fat we need is produced by our bodies, but some forms of fat cannot. Examples of fats include butter, milk, vegetable shortening, and lard.

Cholesterol, phospholipids, and triglycerides are a few examples of pure materials that are fats. Fats offer energy when there is less glucose present.

  • Monounsaturated fats are one type of fat.
  • Polyunsaturated fatty acids
  • Saturable fats
  • Trans fats

Therefore, the correct option is b. short-term energy.

To learn more about fats, refer to the below link:


Short term energy. because you eat fat and carbs for a burst in short term energy. 

A muscle contraction that results in no movement of the body is referred to as a(n) ________ contraction.


A muscle contraction that results in no movement of the body is referred to as an isotonic contraction. The isotonic contraction can be concentric and eccentric. Concentric contraction results in the muscle shortening, because the force the muscle is producing is greater than the resistance. Eccentric isotonic contraction on the other hand results in muscle lengthening because the resistance is being greater than the force the muscle is producing.

Heart Rate Reserve is used to calculate A. Training Intensity.
B. Injury Index.
C. Workout Duration.
D. Target Heart Rate.


A. Training Intensity, Heart Rate Reserve or HRR is used to describe the difference between resting heart rate and maximum heart rate. Monitoring our heart rate is important especially to the people who are looking for weight loss and fitness improvement and it is also indicates the heart rate reserve cardiovascular fitness of a person. The more people become fitness the more their heart become more efficient at pumping blood to the rest of the body.
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