In which of the following organisms does holoblastic cleavage typically occur?

I) sea urchins

II) humans

III) birds

IV) fish

TLS Online TPP Program

#Question id: 13210

#Unit 6. System Physiology – Plant

In Cohesion–Tension Theory, the pressure gradients needed to move water through the xylem could result from

TLS Online TPP Program

#Question id: 13211

#Unit 6. System Physiology – Plant

The upward movement of water and solute against gravitational force from root to aerial parts of the plant through xylem is called

TLS Online TPP Program

#Question id: 13212

#Unit 6. System Physiology – Plant

The water at the top of a tree develops a large tension (a negative hydrostatic pressure), and this tension pulls water through the xylem this mechanism is called ,

TLS Online TPP Program

#Question id: 13213

#Unit 6. System Physiology – Plant

The cuticle covering the leaf is nearly impermeable to water, then how do most leaf transpiration

TLS Online TPP Program

#Question id: 13214

#Unit 6. System Physiology – Plant

The stomata will open less or even remain closed on a sunny morning when

TLS Online TPP Program

#Question id: 13215

#Unit 6. System Physiology – Plant

KCl solutions separated by a membrane in The K+ and Cl– ions will permeate the membrane independently as they diffuse down their respective gradients of electrochemical potential, In biological systems, membranes are usually more permeable to K+ than to Cl–. Therefore, K+ will diffuse out of the cell  faster than Cl–, causing