They are all part of the digestive system, they all break down food, they all have enzymes
The organism that is recycling nutrients is bacteria.
B.
<span>A decrease in plant life would cause carbon dioxide levels to increase and oxygen levels to decrease.</span>
Answer:
Sensitization.
Explanation:
Hypersensitive reaction may be defined as the exaggerated or hyper response of the immune system. Hypersensitive reactions can occur due to auto immunity and allergies.
Type I hypersensitive reaction is mainly mediated by IgE antibodies. The sensitization towards particular stimuli like pollen grains may exaggerate the Type I hypersensitive reaction.
Thus, the correct answer is option (1).