How would more secondary consumers affect the biomass of the higher trophic levels?

would increase, population, and chances of getting more food for survival.

Explanation:

By the increase in secondary consumers, that would give more food and energy and the ease of finding food for the tertiary consumers, which will give more energy for activities and therefore sexual activity can no longer be lacking the energy barrier, and due to that the population of tertiary consumers increases, eventually leading to the same effect and increase in Quaternary consumers.