Biology Test 61

Spore dissemination in moss is aided by :-

During normal physiological condition of body, each 100 ml oxygenated blood supplies the how much O₂ to the tissues ?

PAR of photosynthesis is :-

Which of the following events do not occur during joint diastole ?

I. All 4 chambers of heart are in relaxed state

II. Tricuspid and bicuspid valves open

III. Action potential is conducted from SAN to AVN

IV. Blood from the pulmonary veins and venae cavae flows into the left and right ventricles respectively through the left and right atria

V. The semilunar valves are closed

Which property of benign tumor is not present in malignant tumor?

Choose the incorrect statement about external fertilization :-

How many following purpose carried transpiration?

(i) Creates transpirational pull for absorption of water

(ii) Supplies water for photosynthesis

(iii) Transport minerals in every direction with in a plant

(iv) Cools leaf surface

(v) Maintains the shape and structure of the plant

Electrostatic precipitator (ESP) can remove :-

Leaves originate from –

Classification given by Bentham and Hooker is :-