Which motion of particles across a membrane requires energy? A. From high concentration to low concentration B. From low concentration to high concentration C. With no concentration gradient D. Through dynamic equilibrium

Heat from earths interior and pressure from overlying rock transform the remains of marine sediments into

The phylogenetic tree illustrates the relationship between humans and our closest living relatives. the tree was based on biochemical comparisons, including dna and amino acid sequences. according to the biomolecular data, we could infer that a) the four organisms do not have a common ancestor. b) humans are more closely related to chimps than any other apes. c) chimps are more closely related to gorillas than they are to humans. eliminate d) there is no evidence if any relationship between the four branches on the tree.

List five ways we are indebted to phytoplankton