Water
answer choices:
a. boils at 100 celsius
b. cools very quickly
c. is made of helium and oxygen
d. is slightly acidic at the oxygen end

Guard cells control which event? the growth of plants capture of solar energy gas exchange in leaves water absorption in roots

What was the purpose of mendel's experiments with dihybrid crosses? a. to determine if dna was a transforming factor b. to determine if traits could be recessive c. to determine if traits affected each other d. to determine if traits had more than one allele

In which part of the body is a ball-and-socket joint found?