27 public questions tagged with this topic.
The pyramid of energy is always upright because energy is lost as heat at each trophic level, making energy transfer inefficient.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Ecological Pyramids - Number Biomass Energy
In a forest ecosystem, the pyramid of biomass is always upright because the biomass of producers is greater than that of consumers.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Ecological Pyramids - Number Biomass Energy
NPP is always less than GPP because it accounts for the energy lost through respiration.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
Estuarine ecosystems are highly productive due to abundant nutrients and sufficient sunlight for photosynthesis.
Ref: NCERT Class 12 Biology Chapter 12: Ecosystem Productivity - Primary Secondary GPP NPP
The "Lub" sound occurs when the AV valves (tricuspid and bicuspid) close, while the "Dub" sound occurs when the semilunar valves close.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Human Heart - Structure and Cardiac Cycle
Diastole is the relaxation phase of the heart, allowing blood to fill the chambers.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Human Heart - Structure and Cardiac Cycle
Systole refers to the contraction phase of the heart, during which blood is pumped out.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Human Heart - Structure and Cardiac Cycle
The right atrium receives deoxygenated blood from the body via the superior and inferior vena cava.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Human Heart - Structure and Cardiac Cycle
Blood does transport hormones, along with gases, nutrients, and waste products.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Blood - Plasma and Formed Elements
Oxygen transport is primarily the function of hemoglobin in RBCs, not plasma.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Blood - Plasma and Formed Elements
Plasma contains globulins, which are proteins involved in immune response.
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Blood - Plasma and Formed Elements
Leukocytes (WBCs) are involved in immune defense, while oxygen transport is carried out by erythrocytes (RBCs).
Ref: NCERT Class 11 Biology Chapter 15: Body Fluids and Circulation Blood - Plasma and Formed Elements
