What are some regulated variables that are challenged during exercise?

Regulated variables are sensed processes that contribute to maintaining a relatively stable internal environment. Regulated variables that are challenged during exercise include blood glucose concentration, pH, body temperature, mean arterial pressure, P CO2 (partial pressure of carbon dioxide) and P O2, (partial pressure of oxygen).

answer: c. two haploid cells

explanation:

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.