Task: Text Simplification
Input (English): alkaloids are produced by a large variety of organisms , including bacteria , fungi , plants , and animals and are part of the group of natural products -lrb- also called secondary metabolites -rrb-.
Output (English): alkaloids are made by a large variety of organisms , including bacteria , fungi , plants , and animals and are part of the group of natural products -lrb- also called secondary metabolites -rrb-.