A community interaction would be correct!
A community is when multiple populations interact with each other, in this case the dolphins and fish.
Volcanoes form at different plate boundaries because of the plates divergent and convergent nature. the plates are always in motion, however minimal they may be. When the plates move apart from each other, the magma from below comes up to fill in the vacant space and thus a volcano is formed. It may be the other way round also and that is the magma forces the plates to move away and this results in the formation of a volcano. When one of plates dives under another plate, then the pressure creates melting of the mantle and thereby forms magma which in turn creates volcanoes.
I would say that a bar graph will most helpful.<span>≧◡≦</span>
wales have way more cells than we do, to be exactly precise they Carrie over 10,861,313,870,000,000 so yea... I hope that this helps ya!!
Unicellular would be known to be <span>Chlamydomonas
Volvox would be in a "colonial" organization.
Ulva would be </span><span>multicellular.
Just by understanding this, we would have to point out from your option which one would be relative to our understanding above, and therefore, your answer would then be the following.
Your correct answer would be the last option, as it would read:
</span><span>unicellular: Chlamydomonas ---- colonial: Volvox ---- multicellular: Ulva.
</span>
Your answer: Last option.