Why would a fish with faulty valves in its conus arteriosus probably suffer from a lack of energy?

A faulty conus arteriosus  would compromise on an effective gaseous exchange that keeps the blood of the fish oxygenated for respiration of tissues. The conus arteriosus is one of two accessory chambers found in most fish with two-chambered hearts. The primary function of the conus arteriosus is to prevent the backflow of blood and keep a steady flow of blood into the ventral aorta and the gills.

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

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i didn't have the answer choices , but i tried my best.

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

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