Which molecule is paired with its correct role in protein synthesis?
a. nucleus - forms peptide bonds
b. ribosome - carries dna instructions
c. mrna - joins amino acids
d. trna - transfers amino acids

An easy way to calculate the amount of energy available at each level is to what?

Compare and contrast cladistics and phylogeny. what are their advantages and disadvantages? which is the most useful in understanding how an organism developed into its current form? which concept most strongly supports your opinion about the origin of any given organism?

Some mining processes involve removal of large areas of earths surface in the mined region this practice causes severe environmental damage by allowing which natural process to accelerate in the affected areas? a.precipitation b.erosion c.migration d.condensation