2. How do both whales and humans maximize their oxygen supplies?

Which statement about the pancreas is not true? a. it is an endocrine organ in the abdomen. b. it release chemicals into the digestive system. c. it releases insulin to increase glucose levels. d. it release hormones into the bloodstream.

Which of these is not a nucleotide base found in dna?

20 how are energy cycles and growth cycles related?