The septal and pharyngeal nephridia open into alimentary canal and are enteronephric type. It is adaptation for :
A. Conservation of heat
B. Conservation of water
C. Regulation of temperature
D. Regulation of amino acids
Answer:B
The septal and pharyngeal nephridia open into alimentary canal and are enteronephric type. It is adaptation for :
A. Conservation of heat B. Conservation of water C. Regulation of temperature D. Regulation of amino acids