What is the human version of Ced-9 protein?

the wetland preservation movement began in the u.s. in earnest with the clean water act (cwa) of 1972. although not specifically written to protect wetlands, the cwa is comprised of a series of regulations designed to prevent pollutants from contaminating u.s. waters.

segmented body, an exoskeleton made from chitin, and joint appendages.

for a different answer set the answer would be because the oxygen in the water had depleted (apex)