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- Dictionaryanimal/ˈanɪml/
noun
- 1. a living organism that feeds on organic matter, typically having specialized sense organs and nervous system and able to respond rapidly to stimuli: "wild animals adapt badly to a caged life"
adjective
- 1. relating to or characteristic of animals: "the evolution of animal life"
- 2. relating to or denoting the pole or extremity of an embryo that contains the more active cytoplasm in the early stages of development.
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Sep 15, 2024 · Animals are multicellular eukaryotes whose cells are bound together by collagen. Animals dominate human conceptions of life on Earth because of their size, diversity, abundance, and mobility. The presence of muscles and mobility is one of the primary characteristics of the animal kingdom.
Animal body lengths range from 8.5 μm (0.00033 in) to 33.6 m (110 ft). They have complex ecologiesand interactionswith each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology, and the study of animal behaviour is known as ethology.
Animals are living things. Like plants, animals need food and water to live. Unlike plants, which make their own food, animals feed themselves by eating plants or other animals. Animals can also sense what goes on around them. Their bodies allow them to move in reaction to their surroundings.
Sep 15, 2024 · Animal - Multicellular, Heterotrophic, Eukaryotes: A characteristic of members of the animal kingdom is the presence of muscles and the mobility they afford. The muscles that distinguish animals from plants or fungi are specializations of the actin and myosin microfilaments common to all eukaryotic cells.
Animals are locomotive (i.e., ability to move around), heterotrophic (i.e., consume organic material as a source of food), and reproduce sexually (with the exceptions of asexual organisms). The study of animals is called Zoology.
Feb 5, 2016 · What is an animal? Take a moment to think about it. Without doubt your dog and cat are animals, as are the birds singing out your window. What about an earthworm? Or a flea? Certainly they are. Have you ever walked along the beach and spotted a jellyfish or picked up a sand dollar? They are also animals.
Animals are heterotrophic, multicellular organisms with eukaryotic cells. They are divided into vertebrates and invertebrates, and include mammals, reptiles, birds, fish and more.
