Azebra cell is just about to replicate its dna. what happens first?
an rna molecule attaches to a dna molecule.
the dna folds over on itself to create a dense chromosome.
enzymes unwind the dna molecule into two strands.
the dna molecule attaches to proteins.

The united states produces an average of 429 billion pounds of food annually. about 133 billion pounds of that food ends up as waste.the percentage of food that the united states wastes each year is %.

What would happen if the krill were removed from the food web

'which of these statements about the scientific method is not true? all experiments must follow the same number of steps in the procedure. experiments may be repeated several times. some unexpected results can be beneficial. experimental results may or may not support the hypothesis.