The answer is oxygen
hope it helps!
<span>Primary endocrine disorders may be due to damage to the hormone producing organ. Karen’s thyroid gland suffered damage from repeated exposure to radiation because of a neck injury. The option which is least likely to be part of a primary endocrine disorder for Karen is decreased osteoblast sensitivity to calcitronin. </span>
A. Water falls from the atmosphere as rain, ice, or snow
Answer: both viruses and bacteria can be treated with vaccination, both are spread through airborne means, and both are considered microbes.
please give this brainliest if this helped! :}
Answer:
I think it might be the 2nd one or the last one....
Explanation: