Which statement best explains why the
carbon cycle is classified as a closed-loop
system?

Classify the descriptions and examples as endocrine or neural control

Which of the following statements about archaea and bacteria is true? a. neither is single-celled. b. they both have nuclear membranes. c. neither reproduces by binary fission. d. they both lack a nuclear membrane.

Plz quick a natural resource that is replaceable through a cycle in nature or sustainable practice is called a? the subject is science