Glucose (c6h12o6) can exist as both an open-chain form and a closed-ring form. before 1900, glucose was only thought to occur as an open chain. now we know that over 99 percent of the time, glucose occurs in the closed-ring form. what possible difference between these forms would give chemists a clue that the open-chain form was not present?

Explain how fossils scientists make discoveries about the lives of organisms and about how environments have changed over time. plz hurry up it time

How does natural selection change thephenotypes within a population over time?

Plz ! a frog has a genetic mutation in skin cells that causes part of its skin to turn orange the frog will not pass this genetic mutation onto its offspring because, a. the offspring will inherit skin cells from the other parent. b. mutated skin cells cannot divide and produce daughter skin cells. c. skin cells do not contribute genetic material to sex cells. d. parents do not contribute genetic material to their offspring.