8 Find the delicate _______. In most cases it will be torn Find the delicate _______. In most cases it will be torn. The swim bladder fills with various amounts of gas. This changes the _______ of the trout so it can change its _____ in the water.
9 Above the swim bladder, and pressed against the backbone are the _______. The kidneys ________ nitrogenous wastes.
10 Flip over the liver and find the ________ Flip over the liver and find the ________. The gall bladder stores a yellowish liquid known as ____.
11 Find the _____. The fish has a _________heart (one atrium and one ventricle.) A mammal, on the other hand, has a ______________ heart.