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Questions and Answers
Which kingdom do animals belong to?
What is the estimated number of animal species?
What is the body plan of most living animal species?
What is the scientific study of animals called?
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What is the process by which animals grow from a hollow sphere of cells called?
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Animals consume ______ material
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Animals have ______ and are able to move
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Animals can reproduce ______
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Animals range in length from 8.5 micrometres to 33.6 ______
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The scientific study of animals is known as ______
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Study Notes
Characteristics of Animals
- Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia.
- They consume organic material, breathe oxygen, have myocytes, and are able to move.
- They can reproduce sexually and grow from a hollow sphere of cells, the blastula, during embryonic development.
Animal Species
- As of 2022, 2.16 million living animal species have been described.
- Of these, around 1.05 million are insects, over 85,000 are molluscs, and around 65,000 are vertebrates.
- It is estimated that there are around 7.77 million animal species.
Animal Size and Complexity
- Animals range in length from 8.5 micrometres (0.00033 in) to 33.6 metres (110 ft).
- They have complex interactions with each other and their environments, forming intricate food webs.
Study of Animals
- The scientific study of animals is known as zoology.
Animal Classification
- Most living animal species are in Bilateria, a clade whose members have a bilaterally symmetric body plan.
- The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids, and mollusc.
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Description
Test your knowledge of the animal kingdom with this quiz! Discover fascinating facts about the diverse world of multicellular, eukaryotic organisms, their unique characteristics, and the incredible variety of species within the animal kingdom. Challenge yourself and see how much you know about these amazing creatures!
