fractions

• Living things respond to changes in their environment such as temperature, light, and sound

Every organism, from a tiny bacterium to a giant blue whale, is made of one or more cells.

An autotroph has a special organelle that allows this process to occur. It is called the chloroplast. These organelles are located in the leaves. Inside the chloroplast are certain structures that contain Chlorophyll . The stacks of coin shaped discs are called Grana. Each individual disc are called Thylakoids, which contain chlorophyll.