Of the gradients listed below, which is the most accurate description of the force that ultimately determines the movement of ions across the membrane? a. chemical gradient b. potential gradient c. concentration gradient d. electrical gradient e. electrochemical gradient

Skulls of (1) modern gorilla, (2) australopithecus afarensis, (3) homo erectus, (4) homo neanderthalensis, (5) homo sapiens based on the diagram, which of the following best describes ways in which the physical appearance of h. neandertalensis and h. sapiens differ? (2 points)

Building glycogen from glucose molecules is an example of what

Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?