Answer:
D
Explanation:
Because every system in the body is vital
Using my personal life experience, I can identify four learned habits that are influenced by the environment: parasites, noise, light, sound, and food pollution.
<h3>What does the study of the environment do?</h3>
Environmental scientists employ the natural sciences they have learned to save the environment. Natural science expertise is used by environmental specialists to safeguard both the environment and public health. In order to reduce waste, they might collaborate with industry, advise legislators, or clean up contaminated places.
<h3>What is meant by ecology?</h3>
The study on organisms and how they interact with their environment is called ecology.. The interaction between living organisms and their environments is studied by ecologists.
To know about ecology& environment visit:
brainly.com/question/13254058
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Answer:
The correct answer is: As ventricular systole start, the AV valves are closed and the semilunar valves are closed. Because the ventricles are contracting and both valves are closed, pressure increases rapidly leading to ejection.
Explanation:
The heart functions like a bomb that pumps blood to every part of the body, which is fundamental for the proper function of every organ.
The cardiac cycle has two main phases: the diastole and the systole. During the diastole, blood returns from the body through the vena cava and is deposited in the right atrium of the heart. When the pressure in the right atrium becomes bigger than the pressure in the right ventricle, the tricuspid valve opens and the blood flows to the left atrium.
During systole, the atria suffer a depolarization that makes the atria's muscle contract. Thanks to this, the blood goes through the atria to the ventricles.
During isovolumetric contraction, the ventricles contract but the pulmonary and aortic valves remain closed. When the ventricular muscle contracts, the semilunar valves open.
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That’s the order they need to go in
It would be unable to concentrate Ca+ in the sarcoplasmic reticulum.