Antelope Canyon in Arizona is surrounded by sandstone, a sedimentary rock. What process most likely carved the
canyon from the surrounding rock?
A melting
B pressure increase
C weathering

What is the ecological role of food chains and food webs

When the cell concentrates potassium within, against the natural tendency of matter, it is performing a. passive diffusion b. facilitated diffusion c. active transport d. pinocytosis

16 select the correct answer from each drop-down menu. sharks, whales, and dolphins share similar features such as body shape and the position of fins. hoy while whales and dolphins have lungs. these differences indicate that the organisms share a comme whales also possess a vestigial pelvic bone. the presence of the pelvis bone may indicate that whales reset next