The sun is the ultimate source of energy for terrestrial ecosystems. approximately how much of the potential energy available from the sun s rays hitting the earth is used in photosynthesis? 50% 25% 10% 1%

Which of the following is a drawback to superconductors? -They perform well only at very low temperatures. -They are made from extremely expensive materials. -They have very few uses. -They are dangerous to use.

Describe some structural or behavioral adaptation that a snake has. What challenge of life does it overcome?

What is the outcome when a cell undergoes meiosis?

What term refers to the body of the sternum?

Gall and Penfield had specific and different approaches when it came to studying brain function How were their approaches different?

Which is the best example of a force counteracting Fp? using a dolly to push a box to another location two children pulling apart a wishbone a group of dogs pulling a dogsled across ice two people pushing a broken-down car up the road

What layer of atmosphere reflects radio waves

Which functional group allows the sugar glucose to dissolve in blood? a. Carboxyl b. Hydroxyl c. Phosphate

A protein is in its native conformation when a. it is thermodynamically least stable b. it has the highest gibbs free energy c. it is in any of its functional, folded states d. it is unfolded e. none of the above

If a single female immigrant brings a trait to a small, sparsely populated island and within many generations it is present in 50% of the population, it would be an example of