Biology MCQs

Rate of transpiration can be measured by

With reference to the work of human kidney consider the following statements
1. After the waste is removed in the kidney the clean blood is sent back through renal artery.
2. From Bowman's capsule, the filtered liquid passes through tiny tubes where much of the glucose is reabsorbed and sent back to the blood in the renal vein.
Which of these statements is/are correct?

Which of the following gas is necessary for the process of photosynthesis?

Consider the following statements
1. Different plant species grow together
2. Light cannot penetrate into the lower strata full of undergrowth
Which of the following type of vegetation is characterized by the above?

Main function of white blood corpuscles is

Photosynthesis fulfills which of the following requirements of the autotrophic organisms?
I. Carbon
II. Water
III. Energy

N₂ content is kept constant in the biosphere due to

Amoeba proteus was discovered by

If CO₂ concentration in the blood increases, the breathing will