Question

Solid waste and methane are excreted by the _____ system while carbon dioxide is excreted by the _____ and respiratory systems.

excretory; circulatory,
digestive; circulatory,
circulatory; excretory

Answer 1

The correct answer is A.

Answer 2

Solid waste and methane are excreted by the Excretory systems , the most important organ in excretory systems are our kidneys, which is responsible to dump our solid waste and methane through urine.

menwhile, our circulatory systems is responsible for excreting carbon dioxide through blood plasm.