The Xylem transports water and minerals while the Phloem transport organic nutrients
Answer:
The correct choice is ''ion electrochemical gradients''.
Diffusion of ions across membranes through specific ion channels is driven by <u>ion electrochemical gradients</u>.
Explanation:
An electrochemical gradient can be considered as that electrical (electrostatic pressure) and chemical (diffusion) force that determine the movement of molecules and ions across the membrane. This electrochemical gradient, in addition to causing movement of substances through cell membranes, is also a type of potential energy available for the performance of different cellular activities, potential energy called membrane potential.
Hydra make offspring by forming buds that break off and grow into new hydra
The fly species Drosophila santomea is found only on a single small island. Thus, this fly is considered to be "Endemic".
