Summary 2: Living things in their enviroment

This topic is about ecosystems, ecosystems are all the living and nonliving things in a area interacting with each other. we have the limiting factors that are biotic and abiotic factors for examples of biotic are fongi, bacteria plants, animals , and protist the abiotic are light, water, soil, temperature and minerals, All organisms need water. Their bodies are 50 to 95 percent water. The processes keep living things alive like photosynthesis and respiration can only take place in the presence of water. Living things need minerals, such as calcium, iron, phosphorus, and nitrogen. Some living things, lile plants and algae, need sunlight to make food. Animals need oxygen to produce the energy for their bodies. Plants and algae need carbon dioxide. The enviroment must also have the right temperature for organisms to survive.