Cactus would be ideal for desert living.
Answer:
Something studied on the molecular level is the water.
Explanation:
Water is a molecule formed by two hydrogen atoms and one oxygen atom, whose chemical representation is H₂O. It is a molecule whose polarity makes it a universal solvent of other polar molecules.
The molecular level corresponds to the level of organization where two or more atoms unite to form molecules or substances, united by chemical bonds. H₂O is studied at this level due to its chemical structure.
With respect to other options:
- <u><em>Hydrogen and oxygen</em></u><em> are atoms, and correspond to the level of atomic organization.</em>
- <u><em>Protons</em></u><em> are particles that are part of an atom, and correspond to the subatomic level.</em>
The pathway which starts from phytoplankton, crustacean Nauplii, crab larvae and ends with grey whale is the pathway which has maximum number of trophic levels.
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What is trophic levels?</h3>
The trophic level of an organism is the position that it occupies in a food web or in other words, the trophic level of an organism is the number of steps it is from the start of the chain.
In this graph, the pathway starts from phytoplankton which is eaten by crustacean Nauplii. This crustacean is again eaten by crab larvae and finally by the grey whale. This has maximum number of trophic levels as compared to other pathway.
Learn more about trophic levels here: brainly.com/question/1236573