Answer: It's is the second one. The waste materials generated by one organism are often reused by other organisms.
Explanation: Mass, or matter, is conserved in all physical and chemical changes. Matter is not created or destroyed within ecosystems, it only undergoes physical or chemical changes. One example of this process is that the waste materials generated by one organism are often reused by other organisms as food or nutrients.
When you understand the names of muscles it will help you remember where the ... This table shows two examples of muscle names and how to translate them based on their ... Anatomists name the skeletal muscles according to a number of criteria, each of ... Some muscle names indicate the number of muscles in a group.