Hellp this is my last question

Algae has the most energy.

Explanation:

This is because it starts off at the bottom of the chain/level and is like a plant, which gets its energy from the sun.

Plants usually have the most energy in the trophic level, so in this case, its Algae.

When the organism is passed down the trophic levels, the energy gets cut (I forget the amount, it might be in half), so the Shark has the least among of energy in the trophic levels.

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.