Question

1. What are systems, and how do feedback loops affect them? 2. Explain the first and second laws of thermodynamics. 3. Ecologists say there is no "away" to throw things to, and that everything in the universe tends to slow down and fall apart. What do they mean? 4. Explain the processes of photosynthesis and respiration.

Answer 1

The systems are groups of organs which regulates cooperate work together for a specific task including digestive, respeocatory, excreatory corculatory etc Feed back loops affects systems in 2waye Positive feed back loops enhance changer make system unstable by moving of away from equilibrium state Negative feed back loops keep the eyete to some equilibrium state and makes ! stable by bufferchanges. 9 The first law of thermodynamics in sy states in a closed system, the energy is not consumed and it transfered from one to another The second law explains the enengy transfer increases entropy of in food chain the organism & highered, then less available energy a recieved (or) the less available energy results in less organerims supported. Photosyntheses process includes using of energy from sunlight by plants, bacteria, protistans and to gield glucose from co2 and water and followed by pysuvate formation releasing ATP. process of respiration is to gain energy by combining glucose with O₂ and seleasing ATP CO2, water which follows glycokysis, Krebs cycle and elee ce and Electron trampost.