Answer:
b. Bacteria
Explanation:
Cell walls with lipopolysaccharide are present in gram Negative bacteria. Gram-negative bacteria have an outer membrane in their cell wall which is composed of lipopolysaccharides.
The lipopolysaccharides are the molecules that have both lipids and proteins. The lipopolysaccharide layer that forms the outer membrane of Gram-negative bacteria is present outside to their thin peptidoglycan layer.
Answer:
Option A
Explanation:
Most of the human economic systems if not all operate with the human natural systems. Human economic system and natural systems almost dependent on one another in that they are linked by a network of interconnected processes; for example, human economic activity depend on natural, including a maintained system of primary productivity such as forests and agriculture etc.
<span>Origin
....................................</span>
