Why do skeletal muscles work in pairs? A One tightens and the other relaxes to make the bones move.

B Multiple muscles have to tighten to make joints move.

C They cancel each other out.

D Bones are resistant to movement.

Which level of consumer had access to the smallest apply of energy

Plz genetic engineering can be applied to many fields including medicine and agriculture. which of the following is a medical application of genetic engineering? a. giving crop plants recombinant dna so that they would be resistant to herbicides. b. examining a persons pedigree to determine whether they can carry a gene for a genetic disease. c. analyzing a persons dna to see how closely they are related to another person. d. certain genes into bacteria so that they will produce a needed medicine.

Along what geographical feature are most of the oil producing regions located