Digestive System provides nutrients neccesary to perform life function,and the respiratory systemsupplies the oxygen necessary to break down those nutrients
The circulatory and respiratory system are connected at the lungs. The circulatory needs oxygen form the lungs to pump the blood around the body and the respiratory system supplies the oxygen and gets the oxygen from the air into your bloodstream.Sep 23, 2013
Domestication: When humans take an animal/plant species into captivity, and breed, modify, and adapt the species so every domesticated member of the species is a perfect candidate for food, materials, or service. For example, When wolves became a part of human's lives, the humans chose which wolves to breed, slowly creating what we now know as dogs.
Natural selection: The idea that whatever plant/animal is not adapted to suit its environment will wind up dead, leaving the well adapted survivors to produce more well adapted plants/animals. For example, If bird 1 is green, and bird 2 is brown, bird 1 is more likely to be spotted by predators and eaten; however bird 2 will be able to produce more brown birds.
Answer: Carbon is the only element that can form so many different compounds because each carbon atom can form four chemical bonds to other atoms, and because the carbon atom is just the right, small size to fit in comfortably as parts of very large molecules. Having the atomic number 6, every carbon atom has a total of six electrons.
Explanation: Yw ^^
Answer:
The continuous nature of physical fitness concept means that physical fitness should be in a steady state always.
