Answer:
bacteria. the answer might be e coli too
Explanation:
The task of the respiratory system is the exchange of Oxygen and Carbon Dioxide within the body; however, the respiratory system alone has no mechanism for the transfer of oxygen from the lungs to the body for absorption and transfer of carbon dioxide from the body for expulsion. The cardiovascular system assists in this by moving oxygen-saturated blood from the lungs to different parts of the body and carbon dioxide rich blood from the body to the lungs.
Discontinuous variation <span> refer to large, conspicuous differences from the parents</span>
This is where individuals fall into a number of distinct categories, and is based on features that cannot be measured across a complete range
continious variation refer to small, indistinct differences from the normal condition.
Milk yield in cows, for example, is determined not only by their genetic make-up but is also significantly affected by environmental factors such as pasture quality and diet, weather, and the comfort of their surroundings
The rock's age is being determined, and is determined hope I helped!
I'd say it should be D. Peat. Hope this helps! =^-^=
