Question
Briefly describe the following:
Heart failure.

Answer

Heart failure: It is the state of heart when it does not pump blood effectively enough to meet the need of the body. Congestion of lungs is one of the main symptoms of this disease. Heart failure is not the same as cardiac arrest (when the heart stops beating) or a heart attack (when the heart muscle is suddenly damaged by inadequate blood supply).

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

Write a short note on ethephon. Make a labelled diagram of the root apical meristem, shoot apical meristem and vascular cambium graphical representation.
Label the following structures labelled as A-F in the diagram.

Suppose there were plants that had a high concentration of Chlorophyll b, but lacked chlorophyll a, would it carry out photosynthesis? Then why do plants have chlorophyll b and other accessory pigments?
Metabolism is a defining feature of all living organisms without exception. Isolated metabolic reactions in vitro are not living things but surely living reactions. Comment.
A transverse section of a trunk shows alternate concentric rings

  1. What are these rings known as?
  2. How are these rings formed?
  3. What is the significance of these alternate concentric rings?

OR

A transverse section of a stem of a tree shows concentric rings. How are these rings formed? Statethe significance of these rings.

A particular plant tissue is responsible for a particular task. It is similar to which of the following? How does specialization help in making our work easy?
  1. A particular teacher is responsible for teaching a particular subject in school.
  2. A particular student is good at a certain subject only.
  3. Some students are good at many subjects.
Describe the basic structure of an artery. How does it differ from that of a vein?
What is the difference between flora, fauna and vegetation? Eichhornia crassipes is called as an exotic species while Rauwolfia serpentina is an endemic species in India. What do these terms exotic and endemic refer to?
What are the peculiar features that you find in parasitic platyhelminthes?