What is the function of the structure labeled A in the diagram below? A. To protect the delicate tissue of the lungs

B. To exchange gases between the lungs and blood vessels

C. To contract, thus causing the chest cavity to enlarge

D. To chemically digest food exiting the esophagus

How would you describe the the organisms in the second row of model 1 that are connected to the parents by a line

Recombinant dna is the merging of dna from unrelated organisms to create new genetic varieties is assembled in the lab from mononucleotides was part of the green revolution of the 1960s is pollination of one plant by another of the same species is cross-pollination of one plant by a different species

The basic kind of life cycle found in the simplest animals is: haplontic or diplontic