Enzymes are proteins that speed up reactions by
a. providing an additional energy source
b. supplying additional molecules for the reaction
c. removing inhibitors that slow down reactions
d. lowering the amount of energy required

Question#29: why does the tropical ocean have a greater temperature range than the temperate ocean?

What form of anesthetic was used for field surgery

Which contributions did galileo make to the model of the solar system? check all that apply. a mathematical model for the orbits of the planets scientifically accurate data on planetary orbits data that showed that planets reflected sunlight similar to earth's moon up the idea that stars are other suns that do not move u observations of the moons of jupiter rotating around the gas giant