Explanation:
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A larger overall leave size is the answer.
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Answer: B. They are a first line of defense that can begin killing pathogens immediately.
Explanation:
B-lymphocytes are not the first line of defense. On the contrary, innate immune cells such as basophils, dendritic cells, eosinophils, Langerhans cells, mast cells are the body's first line of defence.
Biodiversity tends to clump around the equator, as it has more heat. The closer you are to the equator, the more biodiversity you will find. The polar regions have little to no life.
