STRUCTURAL ORGANISTION OF PLANTS AND ANIMALS
ANIMAL TISSUES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A polar bear sleeps when it hibernates.
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A tiger rests as it digests its food.
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A lizard sits in the sun to get warmer.
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A crocodile lays eggs in a nest.
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Detailed explanation-1: -People, polar bears, penguins, and prairie dogs, like most other birds and mammals, are endotherms. Iguanas and rattlesnakes, like most other reptiles-along with most fishes, amphibians, and invertebrates-are ectotherms. Endotherms generate most of the heat they need internally.
Detailed explanation-2: -Animals can not make their food from carbon dioxide and water in presence of light because they lack the green pigment called chlorophyll.
Detailed explanation-3: -A surprising number of animals get energy from sunlight: the list includes salamanders, sea slugs, giant clams, sea squirts, jellyfish, corals, anemones, hydras and sponges.
Detailed explanation-4: -Maintaining temperature Many creatures bask in the sun to control their body temperature, a process known as thermoregulation.