Answer:
As per my full understanding,
There are two main modes of nutrition:
Autotrophic – Plants exhibit autotrophic nutrition and are called primary producers. Plants synthesis their food by using light, carbon dioxide and water.
Heterotrophic – Both animals and human beings are called heterotrophs, as they depend on plants for their food.
WHEREBY<u>: TERMS IN THIS TWO SETS ARE:</u>
Chemohetrotroph.<em> Gets energy from chemicals and carbon from other sources.</em>
Photohetrotroph. <em>Gets energy from light and carbon from other sources.</em>
Chemoautotroph. <em>Gets energy from chemicals and produces its own carbon.</em>
Photoautotroph. <em>Gets energy from light and produces its own carbon.</em>
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Diffusion happens when there is a difference in concentration. So for water to diffuse out of the cell, the concentration of water has to be lower outside the cell, than inside the cell.
I think so Flat worms are more complex in all these options.because they have better response system than other options.
The information of DNA is stored in the chemical structure