The lungs are increasing in volume due to the contraction of the primary inspiratory muscles which are the and .

lateral external intercostals and external intercostal muscles

Explanation:

The inspiration is the process of drawing air into the lungs. The primary muscles required for the inspiration include internal and intercostal muscles, parasternal portion required for the internal intercostal muscles.

These muscles can elevate the bony ribs when the air for breathing is inhaled and increase the air capacity for lungs.

The abiotic factors that influencing the survival of organisms in a marine tide Pool are pH, salinity, temperature and oxygen which is present in dissolved form.

Explanation:

Abiotic factors are the factors that are non living in nature. They have a great affect on the growth and survival of the organisms. Some organisms needs saline conditions for living and some needs low or high temperature for growth and development. Some organisms require an acidic or alkaline medium for optimum growth while oxygen is needed by all the organisms for respiration.