Which one of these is not an example of inter-cellular communication? a. chemical signal from putituary gland to adrenal gland b. a vesicle closes over a nutrient c. chemical messengers dock onto receptors pf adrenal gland d. cortisol increases blood pressure

In dna, only the_ varies from one nucleotide to another. base phosphate sugar amino acid

The sketch shows a rynchosaur, an extinct animal that is known only from fossils. there has been much debate about the classification of these creatures. some scientists suggest that they belong with primitive amphibians, and some think they are related to snakes and lizards.the data equally support both cases. which statement best explains how to draw a cladogram that includes the rynchosaur? draw the cladogram for amphibians. draw the cladogram for reptiles. draw two cladograms, both showing the traits, and leave it as a hypothesis. draw two cladograms, both showing the traits, and have scientists vote

Regarding most of the narrator’s story, which word best describes the tone?