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