If only 10% of energy is transferred to the next trophic level, where does the other 90% go? used for life processes and lost as heat
it is used to create super powers in organisms
all is lost as heat
it is destroyed

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.

just finished the test, the answer is d, greg is the least cost-effective because he charges the most for the project

the answer is d p: cell, q: organ, r: organ system, s: tissue