The arrangement of ovules within the ovary is known as placentation. What does the term placenta refer to?

What does the term biota mean?

What does the term 'angiosperms' mean?

What does phenomenon of red drop refer to?

What does the term frugivorous mean?

What are veins ?What is their arrangement known as ?

Avneet buys 9 square paving slabs,each with a side of 1//2 .He lays them in the form of a square. Shari does not like his arrangement.She gets him to lay them out like a cross.What is the perimeter of her arrangement ?(The paving slabs must meet along complete edges:they cannot be broken.)

Adsorption is surface phenomenon, while absorption concerns with the whole mass of the absorbent. In adsorption, the substance is only retained on the surface and does not go into the bulk or interior of the solid or liquid. Absorption implies that substance is uniformly distributed throughout the body of the solid or liquid. In adsorption, the concentration of the adsorbed molecules is always greater in the immediate vicinity of the surface tlian in the free phase. Absorption involves bulk penetration of the molecules into the structure of the solid or liquid by some process of diffusion. Adsorption is a rapid process and equilibrium is attained in a short time. In absorption the equilibrium takes place slowly. Such substance is said to be sorbed and the phenomenon is known as sorption. What is the phenomenon of absorption ?

With reference to below figure answer the following questions: What does this figure depict ?

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 refers?