Why is the fish circulationclassified as a simple andcomplete circulation?

Does salt water in any form when coming into contact with the human body affect the ability to swim?

Your lunch meal contains rice, fish, vegetables and water for drinks. Identify the nutrients present. Make a schematic diagram to trace the flow of nutrients from the time of digestion to the time of excretion.

4:59 Several nephrons are connected to the same into which they empty A) minor calyx B) collecting duct D) glomerulus E) loop of Henle

The osmotic concentration of seawater is approximately 1,000 mOsmol L-¹. Which of the following marine vertebrates can drink seawater without becoming dehydrated? A. A bony fish such as the flounder (maximum urine osmolarity = 340 mOsmol L-¹) B. A marine bird such as an albatross (maximum urine osmolarity ≈ 640 mOsmol L-¹) C. A marine reptile such as a loggerhead turtle (maximum urine osmolarity ≈ 320 mOsmol L-¹) D. A marine mammal such as a whale (maximum urine osmolarity ≈ 1,920 mOsmol L-¹) E. All of the above

Compare the osmotic problem and the mechanism of osmotic regula-tion in freshwater and marine bony fishes.

Pineal body Arbor vitae lateral ventricle cerebellum 3rd ventricle corpus callosum optic chiasma Fornix hypothalamus pituitary gland pons Infundibulum medulla oblongata spinal cord Gyri Sulcus midbrain thalamus olfactory bulb

Your lunch meal contains rice, fish, vegetables and water for drinks. Identify the nutrients present. Make a schematic diagram to trace the flow of nutrients from the time of digestion to the time of excretion.

1) A diver decides to take a balloon with him on a scuba diving excursion to a depth of 10m. The size (volume) of the balloon would _____. A) remain the same throughout the dive B) decrease on the way down and return to its original size on the way back up C) increase on the way down and shrink back to its original size on the way back up 2) How does the size of the air bladder compare between freshwater and salt water fish? A) freshwater fish have larger air bladders because they need to be less dense B) freshwater fish have smaller air bladders because they need to be less dense C) saltwater fish have larger air bladders because they need to be less dense D) freshwater and salt water fish have the same size air bladders because the air bladders play no role in osmoregulation or maintaining salt balance 2) Physoclistous fish fill their air bladders by _____. A) going to the surface and gulping air B) using the carbon dioxide that they produce through aerobic metabolism C)…