Answer: The heart consists of four chambers, two atria (upper chambers) and two ventricles (lower chambers). There is a valve through which blood passes before leaving each chamber of the heart. The valves prevent the backward flow of blood.
Cognitive development in childhood.
Piaget's theory of development mostly concerns with cognitive develompent in children, either quantitative or qualitative. Under his theory, there are many different phenomena that we can test today and see on which stage of cognition a child is.
B - Sebaceous Gland
The Sebaceous Gland is an accessory organ of the integumentary system.
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Answer:
The skills you would require to become an advanced martial artiest would be,
you would need to have peace and know how to keep your temper in check.
you would need discipline and high confidence along with a good amount of focus lots of clear goals and the most important one you need respect for not only you but also for others.
you need self in forced skills.
