When is it possible to break even in an energy transformation? a. always
b. late phase
c. early phase
d. never

please help!!

What is the difference between bacterial infections and viral infections?

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Describe the response the kidneys have to dehydration and excessive water intake. what happens to the concentration of urine in each case ?