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prohojiy [21]
3 years ago
10

Phases of the heart cycle ​

Biology
1 answer:
Aleksandr-060686 [28]3 years ago
4 0

Answer:

There are two phases of the cardiac cycle:

1-Diastole phase

2-Systole phase

Explanation:

During the diastole phase, the atrioventricular valves are open while the atria and ventricles remain relaxed. Deoxygenated blood passes through superior and inferior vena cavae and goes back to the right atrium of the heart from the body.

During the systole phase, atrioventricular valves are closed whereas atria and ventricles contract and moves deoxygenated blood to the pulmonary artery and then to the lungs. Blood picks oxygen from the lungs, and then oxygenated blood is sent to the aorta which sends blood to the whole body via blood circulation.

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The layer of epidermis where most cells have stopped dividing and started making large amounts of keratin is the
Hunter-Best [27]

Answer:

Stratum Granulosum

Explanation:

The stratum granulosum is a layer of the epidermis and consists of four to six cell layers. The keratinocyte appearance changes in the cell layers of stratum granulosum as some cells stop dividing and the process of keratinization starts. Keratinization includes filling the cells with the protein keratin. During keratinization, the cells flatten, and the disintegration of their nuclei and organelles occur.

Due to the loss of the nucleus, these cells cannot divide and become dead. The keratinized cells accumulate keratohyalin granules and lamellar granules. The cells of this layer have thick plasma membrane due to the binding of cytosol proteins bind to the inner membrane face and coating of the external surface of the membrane by lipids of lamellar granules.

3 0
3 years ago
As the sun ages, it contains:
disa [49]

Answer:

more helium

Explanation:

the sun is mostly made up of helium and as it grows it becomes denser and the core holds more helium

7 0
3 years ago
Read 2 more answers
Which is the MOST accurate description about how green plants and animals get food?
irga5000 [103]

One question is this supposed to be multiple choice?

This probably wont be the MOST accurate but this is the knowledge of a 6th grader (i tried)


Plants get their food from photosynthesising, they get their energy ffrom the sun and the chlorophyll is what capturers the suns energy. And once the suns energy has been caught then the electrons move around almost like they are excited to get the energy from the sun (the way some people get excited after consuming sugar a.k.a getting hyper) And the electrons are "jumping" in the thylakoid membrane. now there is enough energy to drive to the 2nd phase.

ADP becomes ATP that is when it is gaining more phosphate. Then the NADP gets more hydrogen to be able to store the energy now it has the hydrogen so it becomes.....NADPH. That is also kind of phase 3 the Calvin Cycle where G3P goes on to make glucose.


An animal gets energy from consuming the plants or other animals and sometimes even eating their own kind. Animals like deer, rabbits, moneys, pandas they all eat plants and or fruits. Because they get their energy from the plants and as said before that the plants get it from the sun. So basically all kinds of animals depend on the plants but some ocean creature dont really depend on plants but in some ways they do. Because not only for food, but for oxygen.


As you may have noticed i kinda know more about plants but soon i will be learning about animals since we are still learning about eukaryotic organisnisms.


Hope this helps. And have a great day! :)

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I FOUDN HIM OFFICER HES DIGHT THERE
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