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amm1812
2 years ago
6

during the process of cellular respiration, energy is released from(1)Carbon dioxide (2) Oxygen atoms(3)Water molecules (4) chem

ical bonds​
Biology
2 answers:
mylen [45]2 years ago
4 0

Answer:

4) Chemical Bonds

Explanation:

Anarel [89]2 years ago
3 0
4,2,1,3 , Cb , OA , CD , WM
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An electrocardiogram (ECG) provides information about: Group of answer choices the pressure of blood in the heart chambers the r
MariettaO [177]

Answer:

the rhythm of heart contractions.

Explanation:

In Human anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.

Generally, the cardiac cycle occurs in two (2) stages;

1. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.

2. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.

An electrocardiogram (ECG) provides information about the rhythm of heart contractions.

Additionally, the right atrioventricular valve (AV) also referred to as the tricuspid valve is located on the right dorsal side of the human heart. The right atrioventricular valve (AV) comprises of three (3) leaflets (flaps) which opens and closes in order to allow for the flow of blood from the right atrium of the human heart to the right ventricle. Also, the right atrioventricular valve is saddled with the responsibility of preventing blood from flowing backward in the mammalian heart.

4 0
2 years ago
What structure of the sarcomere shortens during muscle contraction?
LiRa [457]

Answer:

The Z lines and H- zone shortens during the muscle contraction.

Explanation:

Sarcomere is the area between the two Z lines. The Z- lines are present in the centre of I - band and H - zone is present in the A - band. The actin filaments which are thin filaments present in I- band and contracts, slide over the myosin filament during contraction.

The I - band, H- zones are became shortens as they are thin than the A- band. It is anisotropic band having thick myosin filaments. They are not flexible and remain in its constant shape during the muscle contraction.

After the muscle contraction, the A- band and the H- zone comes to their original shape. In other words, the sarcomere shortens and comes back during muscle contraction, and relaxation.

3 0
3 years ago
Water vapor is important because it helps air hold: PLEASE HELP THIS IS A QUIZ. and please dont answer if u dont know the answer
neonofarm [45]

Answer: D. Heat

Explanation : Water Vapor is a source of warmth, since the heat that is radiated from Earth is absorbed by the water vapor. This is why greenhouses use water vapor as well.

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3 years ago
Suppose that a cell has 20 chromatids at prophase of mitosis. After mitosis and cytokinesis end, the two resulting daughter cell
EleoNora [17]

Answer:

20

Explanation:

Mitosis is a process in which a cell produces an exact copy of itself. The 2 daughter cells produced from mitosis have the same number of chromatids as the parent cell.

8 0
3 years ago
According to the World Resource Institute, biodiversity is the variety of the world's organisms, including their genetic diversi
Pepsi [2]
Seed banks are expensive to maintain.
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3 years ago
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