Class 7 science -Chapter 4 – Heat – Definition and Explanation of Important Keywords

Class 7 Science – Chapter 4 Heat: Definition and Explanation of Important Keywords”
In this chapter, we explore crucial heat-related terms like “Celsius scale,” which measures temperature, and “conduction,” the process of heat transfer in solids. “Convection” explains heat flow in fluids, while “radiation” details heat transfer without a medium. Understanding these terms is essential for grasping the science of heat.

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formation of lymph

How Lymph is Formed ?

The lymphatic system is responsible for maintaining proper fluid balance and immune function in the body. Lymph is formed through a complex process that involves the collection of excess fluid from the tissues, entry into lymphatic capillaries, transport through lymphatic vessels, filtration in lymph nodes and return to the bloodstream. Factors such as exercise, gravity and disease can affect lymph formation and have significant implications for overall health and wellness.

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22 Differences Between Plasma and Serum

22 Differences Between Plasma and Serum

Plasma and serum are the two distinct components of blood that vary in definition, composition, and properties. Plasma comprises electrolytes, proteins, enzymes, hormones, metabolites, and clotting factors while serum is devoid of clotting factors. Both require different preparation methods, have clinical significance in disease diagnosis and treatment, and can be used for various purposes such as biomarker analysis, blood transfusions, and research studies. diffrence between plasma and serum explained for students to complete their assignments , homework and exams

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Cardiac Cycle – Class 11th 

The cardiac cycle is the series of events that occur during one heartbeat where the heart contracts and relaxes to pump blood. It includes diastole and systole in which the heart’s chambers fill with blood and then contract to eject blood. The cardiac cycle is regulated by electrical signals, nervous system input, hormones, and it is important for diagnosing and treating heart conditions.

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