Answer:
D.
Explanation:
The immune system lowers the chances of bacteria, viruses, and diseases entering your body
Answer:
your answer is antibodies reacting to foreign antigens.
When a plant is left in dark for several hours, it does not get sunlight. Isn't it?
When a plant does not get sunlight, it cannot prepare food for itself , i.e, photosynthesis does not take place. When it does not prepare food in the form of starch, it will test negative for it.
hope it helps!