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Angler Fish Lab Report

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not much power is needed. Alternatively, the ventricle needs to have enough muscular energy to pump blood all the way to the gills, through the entire fish’s body and back to the atrium again. Therefore the ventricle’s walls in the anglerfish’s heart have more muscle than the atrium, to allow blood to be successfully pumped and oxygen be delivered to cells.

About 21% of the air mammals breathe is oxygen, while underwater only 1% is oxygen. Because there is much less oxygen in water than there is in air, anglerfish have adaptations to enable them to survive and create ATP energy with oxygen efficiently. Anglerfish (and all fish) have developed gills that carry out gas exchange in the water. The anglerfish takes in water through its mouth …show more content…

In these locations, gases are absorbed and released where needed. As oxygenated blood flows through arteries in an anglerfish, it maintains a constant speed, as the law of continuity states that if the fluid (blood) stays at constant density and the pipe (veins/arteries) remains the same cross-sectional area, then the speed of the blood will be constant. When the pipe cross-sectional area changes, the average velocity of the fluid changes so that blood flows faster in thinner parts of a pipe and flows slower in wider parts. This would lead us to think that when blood travels from arteries to a capillary bed the blood pressure would increase, as the cross-sectional area of each capillary is much less than the cross-sectional area of each artery. However, blood pressure actually decreases significantly in capillary beds, because each artery transfers blood to a huge number of capillaries, the total cross-sectional area of all these capillaries exceeds by far the cross-sectional area of the one artery. The slowing down of blood flow through capillary beds is an adaptation in anglerfish. It makes chemical exchange much more efficient, therefore oxygen and nutrients are delivered to the fish’s cells faster so that ATP energy is made allowing the fish to carry out life

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