Answer:
The answer is d.
Explanation:
The increase in greenhouse gases can cause climate change and an increase in the global temperature.
Explanation:
the answer should be d because of the concentration gradient see if that makes sense
A....................................
Answer:
Pertussis.
Explanation:
Vaccine is given as the preventable measure for the particular disease. Vaccine may contain the weakened or killed antigen, the epitope part of any antigen and the particular DNA or protein.
Pertussis is also known as whooping cough that affects the respiratory system of an individual and can cause pneumonia as well. The vaccine for the pertussis is available in the hospitals for the prevention of pertussis in the future generation.
Thus, the correct answer is pertussis.
Hemoglobin carries the oxygen.