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- To be considered an animal, a living thing must meet the following criteria12:
- It must be a living thing.
- It must be made up of many cells (multicellular).
- It must obtain energy by consuming other organisms (heterotrophic).
- It must be able to physically move its body at one or more stages of its life cycle.
- Its body must be made up of multiple cells.
- Sexual reproduction must occur - a sperm and an egg cell combine to produce an embryo that grows into a juvenile animal.
Learn more:✕This summary was generated using AI based on multiple online sources. To view the original source information, use the "Learn more" links.Key characteristics of animals include the following:
- They obtain energy by consuming other organisms (we say they are 'heterotrophic').
- They are able to physically move their bodies about at one or more stages of their life cycle.
www.sciencelearn.org.nz/resources/14-characterist…To be an animal, you must be a living thing and you must be made up of many cells (multicellular). This criterion alone eliminates the bacteria and some other living things called archaea and others called protists.www.calacademy.org/blogs/project-lab/what-is-an-… - People also ask
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