Answer: Explanation:
Water is formed when hydrogen and oxygen react to form H2O during the electron transport chain, which is the final stage of cellular respiration.
<span>After a long time, a mature community is established and this community does not change unless it is disturbed.</span>
Ans: D
Chemical changes:-
occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.
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The answer to your question is Sclerenchyma cells have thick lignified secondary walls. Answer: Sclerenchyma
Answer:
External stimulus is the type of stimulus an allergen, such as pollen, is classified.
Explanation: