Question

question 3
metabolism is defined as ______.
a the taking in of nutrients
b all the chemical reactions occurring in an organism that support life
c the removal of wastes produced by chemical reactions
d the breakdown of substances into simpler forms

Explanation:

Metabolism encompasses all the biochemical reactions in an organism that are essential for life - including anabolism (building molecules) and catabolism (breaking down molecules). Option A only refers to nutrient - intake, option C is about waste - removal (excretion), and option D only focuses on breakdown. The complete definition is all the chemical reactions in an organism that support life.

Answer:

B. all the chemical reactions occurring in an organism that support life