Answer:
Plants require 17 essential elements for growth: carbon (C), hydrogen (H), oxygen (O), nitrogen (N), phosphorus (P), potassium (K), sulfur (S), cal- cium (Ca), magnesium (Mg), boron (B), chlorine (Cl), copper (Cu), iron (Fe), manganese (Mn), molybdenum (Mo), nickel (Ni), and zinc (Zn).
Answer:
the salivary glands and the pancreas.
Explanation:
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The answer to you’re question would be catalyst
Answer:
External stimulus is the type of stimulus an allergen, such as pollen, is classified.
Explanation: