Which of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction.

✅ D. Parabronchi

Option A: Alveoli Option B: Air sacs Option C: Bronchi Option D: Parabronchi Correct Answer : Parabronchi Read more

✅ D. Planation

Option A: Overtopping Option B: Fusion Option C: Webbing Option D: Planation Correct Answer : Planation Read more

✅ D. Butterfly

Option A: Wasp Option B: Beetle Option C: Cricket Option D: Butterfly Correct Answer : Butterfly Read more

✅ B. larger number of Red Blood Cells

Option A: smaller number of Red Blood Cells Option B: larger number of Red Blood Cells Option C: smaller number of White Blood Cells Option D: larger number of White Blood Cells Correct Answer : larger number of Red Blood Cells Read more

✅ B. Older sediment layers have less amount of these reaioactive isotopes as that of the young ones.

Option A: Older sediment layers have equal amount of these reaioactive isotopes as that of the young ones Option B: Older sediment layers have less amount of these reaioactive isotopes as that of the young ones. Option C: Older sediment layers have greater amount of these radioactive isotopes as that of the young ones. Option D: Older sediment layers did… Read more

✅ B. Anaerobic respiration

Option A: A  Acidic respiration Option B: Anaerobic respiration Option C: Aerobic respiration Option D: Nitrogenous respiration Correct Answer : Anaerobic respiration Read more

✅ B. Blood

Option A: Urine Option B: Blood Option C: Glomerular filterate Option D: Coelomic fluid Correct Answer : Blood Read more

✅ C. There is reduction of bone mass and change in chemical composition of the matrix

Option A: It results from estrogen deficiency. Option B: Bone eating process takes over bone formation process. Option C: There is reduction of bone mass and change in chemical composition of the matrix Option D: It is common in old age. Correct Answer : There is reduction of bone mass and change in chemical composition of the matrix Read more