A biologist discovers the carcass of an animal that was recently partially eaten by a predator in the jungle.The animal's heart was large,well-formed,and had four chambers,with no connection between the right and left sides.A reasonable conclusion supported by these observations is that the

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The presence of a large, well-formed heart with four chambers and no connection between the right and left sides suggests that the animal was likely endothermic with a high metabolic rate, requiring efficient delivery of oxygenated blood to its tissues. This is consistent with mammals and birds, which are both endothermic, while reptiles such as alligators and crocodiles have a partially divided heart and are ectothermic. The mention of invertebrate animals is irrelevant, and there is no information provided about blood pressure regulation.

A Biologist Discovers the Carcass of an Animal That Was