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Science 8th. grade Review: Structure & Function of Living Systems
Terms in this set (18)
What are the two systems that work together to remove the wastes from blood?
Excretory (metabolic waste) Respiratory ( CO2)
Explain the main functions of the endocrine system.
Release hormones which influence processes.
Name organs of the integumentary system
Where are alveoli located, and what happens in the alveoli?
Lungs: gas exchange
What are the two body system that interact in that exchange?
Respiratory (breathe) Circulatory (carries to body)
What is the process that these two systems accomplish together?
When breathing, where is the original source of oxygen (O2) coming from?
Why do we have red blood cells (RBC)?
Ovaries are organs that produce the hormone estrogen. What two organ systems include these organs?
Endocrine (hormone estrogen) Reproductive (eggs)
The body has a system that performs in a similar way to a heating and cooling system in a building- the respiratory system. Nasal hairs in our noses warm the air we inhale. What is the other main function of nasal hairs?
Filters dust other people's dead skin cells.
What part of a heating and cooling system in buildings do nose hairs act like?
A filter that keeps out dirt and other particles.
What organ and system helps to regulate our temperature and serves as a barrier to bacteria and viruses?
skin, integumentary system
What system transports nutrients and oxygen to all the cells in the body, while also removing wastes from all the cells in the body?
Circulatory ( also called cardiovascular )
What system absorbs nutrients, breaks down food, and gives us energy?
What system protects, gives structure, and makes red blood cells (RBC)
What system produces chemicals, keeps blood sugar correct, and helps us with our feelings?
What organ helps maintain sugar levels in your body?
Pancreas, by releasing the hormone insulin.
Why do birds have an internal structure of hollow bones?
to reduce mas for fig
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