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Biology4Kids Quiz: Circulatory Systems

QUESTION 1:
All animals have a system of vessels and tubes called a circulatory system.

False

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- Biology4Kids: Animal Systems
- Biology4Kids: System Regulation
- Biology4Kids: Circulatory System
- Biology4Kids: Digestive System
- Biology4Kids: Immune System
- Biology4Kids: Nervous System
- Biology4Kids: Skeletal System

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