The goal of a cladogram is to show relationships and evolutionary descent between species.
Photosynthesis is a process that uses the soliare to produce chemical energy (glucose). This means that the algae living in the water require a supply of solar light, and for that it would be necessary that the water is clear so that the solar rays can pass and reach the algae.
In the case where these corals and algae live in a cloudy or muddy water, the sun's rays do not pass very well, and therefore the photosynthesis of these algae is altered.
Multicellular organisms can be much larger and more complex. This is because the cells of the organism have specialised into many different types of cells such as nerve cells, blood cells, muscle cells all performing different functions.
The answer would be catalyst.
250 billion ± 150 billion
