Which of the following is a distinctive characteristic of a neotenic species of amphibian? An adult has nucleated red blood cells. An adult male fertilizes an adult female’s eggs outside the body. An adult has external gills. An adult has a three-chambered heart. An adult is unable to concentrate urine. None of the above
Which of the following is a distinctive characteristic of a neotenic species of amphibian?
An adult has nucleated red blood cells.
An adult male fertilizes an adult female’s eggs outside the body.
An adult has external gills.
An adult has a three-chambered heart.
An adult is unable to concentrate urine.
None of the above