Vascular plant is to nonvascular plant as cactus is to - a fern. b moss. c palm tree. d oak tree.

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

Most animal cell membranes have proteins that pump. ions out of the cell and potassium ions into this

What is the next step in the process after a substrate enters the active site of an enzyme