Answer:
Scientists have identified a key difference in the way our immune systems respond to viral and bacterial pathogens. ... These hormone-like molecules control communication between cells to trigger defensive action by the body's immune system when pathogens such as bacteria, viruses, or parasites are detected.
Explanation:
Answer:each of a number of flattened sacs inside a chloroplast, bounded by pigmented membranes on which the light reactions of photosynthesis take place, and arranged in stacks or grana.
Explanation:
Answer: Yes becuase white cells help in fighting against diseases, infections, allergies and foreign particles. Just like soldiers would help in fighting off enemies. These white cells keep our body safe and healthy, like soldiers keep their own country safe.
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