SCIENCE
ZOOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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through a McDonald’s Straw
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through a set of lungs attached to the swimmerets
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through a set of gills attached to the walking legs
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through their skin
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Detailed explanation-1: -Respiratory System: Being aquatic organisms, crayfish have gills that aid in respiration. These featherlike structures are found underneath the carapace and are attached to the chelipeds and walking legs. As the crayfish move these appendages a constant flow of water moves through the carapace over the gills.
Detailed explanation-2: -Water Walking Legs-legs used for walking, food gathering, and moving water over the gills. Antennae-long thin anterior structure used to taste food, touch, and maintain balance. Antennule-short thin anterior structure used to taste food.
Detailed explanation-3: -Both crayfish and shrimps breathe dissolved oxygen through gills located beneath their carapace.
Detailed explanation-4: -Locate the gills, which are featherlike structures found underneath the carapace and attached to the chelipeds and walking legs. A constant flow of blood to the gills releases carbon dioxide and picks up oxygen.