Evolution Of Life
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Mixed heart means the heart in which the oxygenated and the deoxygenated blood is mixed. Reptiles and amphibians have mixed heart.
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50 Lobsters belong to which one of the following classes of organisms?
Lobsters are farther categorized into the class Crustacea, along with other marine organisms like crabs and shrimp. These crustaceans are distinguishable from other Arthropods with hard exoskeletons, like mussels and clams, because their shell is softer and more flexible.
51 Which of the following animals do NOT belong to the class of reptiles?
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Giraffe have no vocal cords.
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