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Debora [2.8K]
3 years ago
15

Dạ dày nối tiếp với thực quản qua

Biology
1 answer:
nignag [31]3 years ago
7 0

Answer:plz mark me as a brainlist

Explanation:

The lower esophageal sphincter (LES) is a bundle of muscles at the low end of the esophagus, where it meets the stomach.

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PLS HELP!! ILL MARK BRAINLIEST
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Answer:

1. While Biology is the study of living things, living things themselves are made up of chemical composition. Our survival is dependant on the reactions taking place inside and outside the body. Hence, to understand living things, biologists needs a good understanding of chemistry.

2. 170 pm is the radius of a Carbon Atom.

3. The vast majority of the mass of an atom is concentrated in its nucleus

4. Protons are found in the nucleus of the atom. This is a tiny, dense region at the center of the atom. Protons have a positive electrical charge of one (+1) and a mass of 1 atomic mass unit (amu), which is about 1.67×10−27 kilograms.

5. Neutrons are located with protons in the nucleus; they too exchange mesons with protons and with each other to form the strong nuclear force, but they do not have to overcome the repulsion from Coulomb forces since neutrons are not charged.

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SC.8.L.18.4A student picked up Ball A off a shelf and threw it. In this action light energy from the sun is transformed into che
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B. Energy was conserved because the light energy was transformed into various forms in the process.

Explanation:

Law of Conservation of Energy states that energy cannot be created nor destroyed. However, it can transform into other types of energy. B is the only answer that follows the Law of Conservation of Energy.

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