Muscles - they are meat, and animals will eat the meat. They also decompose, leaving no trace of the remains.
I think the correct answer is necrotic tissue. Debridement is the removal of unhealthy tissue from a wound or skin to promote healing. It can be done using surgical methods, chemical, mechanical or autolytic (own body process)removal of the tissue. The unhealthy tissue may be a damaged, dead or infected tissue that is removed to improve the potential of healing of the remaining healthy tissue.
Answer:
I think coniferous forest is the answer
They could improve the experiment that they made by adding another variable such as: watering the plants with fresh water. This way they could have a better comparison how plants grow based on the type of water they are exposed with.
