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Living things (Nutrition (Heterotroph (Need nutrients from other living…
Living things
Nutrition
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way in which living beings obtain and use food, animals also take food from other living things
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Hervibores
Animals that only eat plants or algae. They also eat grass, seeds, fruits, nectar or wood. The differences between the mouth are related to their eating habits
Rabbits eat grass
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Long, curved incisors help them cut the food.
molars, with very sharp cusps, crush the food.
Snails eat grass
They use their radulas to grind it. The radula is like a hard tongue covered with small teeth to nibble the leaves.
Butterflies drink nectar from flowers with a long tube-like structure, the proboscis, which works like a straw. They keep it curled up inside their mouth when they are not using it.
Carnivores
Carnivores that hunt their prey are called predators, and those that eat dead animals are called scavengers.
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Frogs eat insects, spiders, earthworms, snails and any other animal small enough to swallow whole. They catch their prey with their long, sticky tongues. Some have teeth that they use to prevent their prey from escaping.
Spiders eat insects that get trapped in their spider web. They do not have teeth. Instead, the spiders immobilize their prey with poison and inject digestive juices to dissolve the organs of the prey. Then they drink the liquid produced.
Cells are the basic units or living things All animal and plant cells have a cell membrane that separates the cell that encloses its content, the cytoplasm.
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