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Leona [35]
3 years ago
5

The first cells to initiate an electrical signal in the heart is the

Biology
1 answer:
Lady_Fox [76]3 years ago
3 0

Answer:

Answer is Sinoatrial node, SA.

Explanation:

The sinoatrial node, SA, is known to be a group of cells which are found at the top of the heart.

The electrical signal that is initiated by the sinoatrial node bring about or stimulates the atria and then the ventricle of the heart.

It should be noted that, the sinoatrial node are regarded as the pacemaker cells.

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A client performs two repetitions of a bench press exercise with 130 lb and gradually decreases the resistance with each set unt
blagie [28]

Answer:

The correct answer is c. The client is using a Pyramid system.

Explanation:

The pyramidal method owes its name due to its structure: it is based on the gradual increase and decrease of the weight that we must ballast (if we require it in an exercise with ballast) or if we prefer it without additional weight, a gradual increase or decrease of the repetitions . All this increase and decrease in repetitions and / or weight, occurs in a staggered manner between each series for a single exercise, with the aim of being able to recruit a very high number of muscle fibers. It is usually done ascending or descending.

The descending pyramidal method consists of lowering the load, but increasing the repetitions, that is, it begins by applying large loads from the beginning and few repetitions, until ascending in the pyramid and completing the exercise having increased the repetitions and reducing the weight used. With this type, what we achieve is called the strength-resistance of the muscles.

4 0
3 years ago
Christie’s doctor recommends that she eat 40 grams of protein a day. She already consumed 50% of her recommendation for the day.
Kay [80]

Answer:

he options are not given. The options are;

A. 1 B. 3 C. 4 D. 6

The answer is 4 which is option C.

Explanation:

Protein recommendations is the amount of daily required dietary proteins for a person base in its weight.

Christie's Doctor recommend 40grams of dietary protein and she has already consumed 50% of it. This meant that she has consumed about 20 grams of the required dietary protein and she needed additional protein source to complete her daily requirements. Therefore, Christie needs additional four servings of snacks to meet her daily protein recommendations.

Explanation:

5 0
2 years ago
Read 2 more answers
HOW DO THE CARBON DIOXIDE OXYGEN MOLECULES ENTER EXIT A PLANT?<br> I WILL GIVE YOU BRAINLYEST!!
madreJ [45]

Answer:

Carbon dioxide and oxygen can't pass through the cuticle, but move in and out of leaves through openings called stomata

Explanation:

5 0
3 years ago
Read 2 more answers
Which of the following is NOT made up of atoms?<br> “Heat”<br> “A gas”<br> “A cell”<br> “A solid”
kykrilka [37]
Cell, and gas are for sure made up of atoms so it’s either heat or a solid
6 0
2 years ago
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How can recycling impact the environment? A) It uses less energy to make something from recycled materials than from new materia
o-na [289]

Answer:

A) It uses less energy to make something from recycled materials than from new materials.

Explanation:

When a recycled material is used to make a new product, it conserves energy because the recycled materials have already been processed once; so making something from it for the second time uses less energy-intensive than the first. For example: Making new aluminium from old products uses 95% less energy than making it from scratch.

Hence, the correct answer is "A)"

8 0
3 years ago
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