B. It is rigid it is important becuase it keeps the plants structure and it allows the plant to stand upright.
It is not a fluid and because it is rigid it does not stretch.
It cannot be C. because the cell wall is made of cellulose and it is a non living maerial therefore it cannot be alive
Out of the following given choices;
<span>A.ecosystem. B.ecotone. C.community. D.niche</span>.
<span>The answer is
A. it involves all organisms in an enviroemt inerracting with each other , example throguh parasitism, predation, symbiosis, and etcetera. The organism also interact with abiotic factors in the enviroemnt such as water, air, nutrients, and etcetera</span>