Which food contains the material needed to build muscle, but does not contain the macromolecules that give quick energy?
a. steak
b. broccoli
c. bread
d. potatoes?

Nerve cells are specialized to respond to stimulitrue or false?

Deserts (especially true deserts) are not easy places for animals to live. animals who live in them often have special features that them survive. which adaptation would be for this group of animals? a) keen eye sight b) short, narrow legs c) tolerate heat d) webbed feet

Astudent wants to compare the amounts of co2 given off by yeast provided with different amounts of sugar. the student places a balloon over each container to catch the released co2. which observation is a qualitative observation the student can make?