Ecosystem instability refers to that state when an ecosystem is unable to adjust with environmental changes. ... Ecosystem instability is also induced due to manmade activities. For example, (1) Destruction of Himalayan ecosystem due to deforestation, overgrazing etc.
porifera, cnidaria, platyhelminthes, nematoda, mollusca, annelida, arthropoda, and echinodermata
Answer:
A
Explanation:
Photosynthesis produces carbon dioxide, while cellular respiration produces oxygen