Which of the following is a shared characteristics of photophosphorylation and oxidative phosphorylation? A. both utilize a proton gradient established by an electron transport chain to power ATP synthetase
B. both consume oxygen and produce carbon dioxide
C. both involve substrate-level phosphorylation being the main route of ATP production
D. both produce metabolic water
E. Both use high-energy electron carriers to shuttle electrons within organelles of the cell
F. both can be performed by plant cells

Dr. kaylan is an ecologist who studies bird behavior. she sets up an experiment to test which type of food crows are most likely to eat when given a choice between walnuts, corn, and sunflower seeds. to perform her experiment, dr. kaylan places three food bins in an area frequented by cows. each bin contains one of the three food types. then, she measures how much of each food type is eaten every day for a month and summarizes the results of her experiment in the pie chart below. based on her results, dr. kaylan concludes that crows choose to eat corn more frequently than other food sources because it has a higher nutritional value. what is a reasonable alternate conclusion that can be drawn from dr. kaylan's data

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Why is earth's outer core hotter than earth’s oceanic crust? earth’s oceanic crust is denser than earth’s outer core is. earth’s oceanic crust has lava flowing from the mantle. earth’s outer core has a composition of solid iron and nickel. earth’s outer core is deeper within earth than oceanic crust is.