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From microscopic bacteria to massive blue whales, planet Earth is populated by a spectacular variety of life. But, despite their obvious differences, all living things share certain common features. They all obtain energy, grow, respond to their surroundings, and reproduce—things that nonliving objects, such as rocks, cannot do. Scientists divide life-forms into five distinct groups called kingdoms. Each has its own features, as you can see here.
Despite their diversity, all animals share certain key features. They are all multicellular (made from manycells), and get their food by eating other living things. All animals move at least part of their body, and many move around actively to find their food, using one or more senses to detect it
2020-9-3 10:07
2020-9-3 10:07
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