Answer:
terrestrial or aquatic
Explanation:
Terrestrial ecosystems are land-based, while aquatic are water-based. The major types of ecosystems are forests, grasslands, deserts, tundra, freshwater and marine.
The circulatory system provides your brain with a constant supply of oxygen rich blood while your brain regulates your heart rate and blood pressure meanwhile your bones are busy making new blood cells. working together these systems maintain internal stability and balance otherwise known as homeostasi
Chewed food mixed with saliva is called a Bolus, which is swallowed once mastication is complete. Bolus is the food that has been chewed and mixed in the mouth with saliva. Chewing helps to reduce food particles to a size readily swallowed; saliva adds digestive enzymes, water, and mucus that help chemically to reduce food particles, hydrate them for taste, and lubricate them for swallowing.
Answer:
respiratory system and the cardiovascular system
Explanation:
Respiratory system supplies the body with oxygen. The cardiovascular system moves the oxygen through out the body by red blood cells
