Crustaceans and Arthropods

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What is the largest group of living organisms based on the number of species?
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Arthropods are the largest group of living organisms.
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What are crustaceans?
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Crustaceans are one of the largest groups of arthropods.
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What is the external skeleton of arthropods like?
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Arthropods have a soft external skeleton.
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What are the body parts of crustaceans?
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Crustaceans have bodies consisting of a head, thorax, and abdomen.
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How many pairs of antennae do crustaceans have?
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Crustaceans have two pairs of antennae, though this statement mentions three pairs.
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Do crustaceans have internal or external fertilization?
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Crustaceans have internal fertilization.
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How do crustaceans breathe?
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Crustaceans have gills for a respiratory system.
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Are all crustaceans predators?
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Not all crustaceans are predators; they can also be herbivorous.
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What type of circulatory system do crustaceans have?
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The statement incorrectly mentions crustaceans having a closed circulatory system; they actually have an open circulatory system.
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What is the function of paired glands in crustaceans?
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Crustaceans have paired glands for excreting metabolic waste.
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Is reproduction in crustaceans associated with disease?
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The statement mentioning reproduction always involving disease is incorrect.
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Do crustaceans have organs for chemical sensing?
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Yes, crustaceans have organs for chemical sensing.
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What is the symmetry of crustacean bodies?
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Crustacean bodies are symmetrical.
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Where do all crustaceans live?
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Not all crustaceans live in the water; many do, but not exclusively.
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Can crustaceans be both herbivores and predators?
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Yes, crustaceans can be herbivores, predators, or omnivores.
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Can some crustaceans be parasites to humans?
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Yes, some species of crustaceans can be parasites to humans.
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Do crustaceans have only one pair of antennae?
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This statement is incorrect; crustaceans typically have two pairs of antennae.
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Do crustaceans have organs of balance?
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Crustaceans do have statocysts, which are organs for balance.
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What is the size of a Japanese spider crab?
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A Japanese spider crab can grow up to 45 cm.
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How large can American lobsters grow?
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American lobsters can grow up to 107 cm.
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Are crustaceans the main diet for whales?
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Some crustaceans, like krill, form an important part of the diet for some whales.
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Do crustaceans have segmented bodies?
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Yes, crustaceans have clear segmentation in their bodies.
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Do all crustaceans have gills for respiration?
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Yes, all species of crustaceans have gills for breathing.
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Are crustaceans capable of external fertilization?
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Some species of crustaceans are capable of external fertilization, although internal fertilization is more common.
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