Most living things depend on photosynthetic cells ... These sugar molecules are the basis for more complex molecules made by the photosynthetic cell, such as glucose. Then, via respiration ...

A teddy bear might look like a bear, but it cannot do any of the seven things it needs to ... So, a car is not alive. All living organisms are made up of cells. Cells are the building units ...

Cells are the fundamental unit of all living things. Specialised plant cells have ... Just like animals, plants are made of tiny little cells. Like animal cells, basic plant cells have a nucleus ...

photosynthetic cells started generating oxygen — an event that had dramatic consequences for the evolution of all living things on Earth (Figure 1). Today, chloroplasts retain small, circular ...