The answer is D. An irritant that because embedded in the mantle
The ultimate souce of energy for the food chain is solar energy from the sun. It allows plants to convert the solar energy to chemical energy for growth. The growing plants in turn allow heterotropic animals to consume them to obtain energy of their own.
The atoms are conserved in both physical and chemical processes during cellular respiration.
Hope that helps
They had to change they way they live which is quite difficult it is like you going to a new school in a new state and not being used to anyone
