Answer:
The deers might not have enough food for themselves due to the drought which decreased the growth of prairie grass making it lesser. Deers will slowly starve to death, making the population decrease. Hence, it will become extinct.
The *heart* is the main organ of the circulatory system.
The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic). The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells.
C, the cells do not use carbon dioxide they give it off after cellular resparation
I think the correct answer from the choices listed above is the first option. The abiotic component that would most likely change in a shallow ocean ecosystem during upwelling would be an increase in oxygen content. Hope this answers the question. Have a nice day.