Answer:
Different diseases are caused by different types of micro-organisms. Microbes that cause disease are called pathogens. It is important to remember that: A pathogen is a micro-organism that has the potential to cause disease.
Answer:
I believe its primary succession
Explanation:
There are two types of photoreceptors in the human retina, rods and cones.
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The answer to this question is letter A.<span>
nervous system and musculoskeletal system </span></span></span></span>
When person touches a hot surface with his hand and his hand springs back. His nervous system and musculoskeletal system is operating.
<span>A.nervous system and musculoskeletal system B.cardiovascular system and endocrine system C.musculoskeletal system and endocrine system D. nervous system and cardiovascular system</span><span>
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