Oxygen binding and hemoglobin structure a team of biochemists uses genetic engineering to modify the interface region between hemoglobin subunits. the resulting hemoglobin variants exist in solution primarily as αβ dimers (few, if any, α2β2 tetramers form). are these variants likely to bind oxygen more weakly or more tightly? explain your answer.

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied

What is the chemical equation of fire?

Sandy is building a small toy car. he wants to use a balloon to power the toy car. he fills a balloon with air and then attaches a straw to the balloon. he tapes the balloon-straw combination to the car and then releases the end of the balloon. the toy moves forward as the air from the balloon comes out the back of the straw. what can sandy do to make the toy car move faster? a) use less air in the balloon. b) blow up the balloon more. c) use a longer straw. d) use larger tires.