Out of the organisms listed, which are most closely related based on the characteristics listed.

a)
balantidium sp. and stentor sp. because they are both multicellular.

b)
monodon monoceros and canis familiaris because they are both mammals.

c)
ophiophagus hannah and pinus ponderosa because they both live on land.

d)
stentor sp. and monodon monoceros because they are both found in the water.

The most appropriate answer is (b) Monodon monoceros and Canis familiaris because they are both mammals.

Monodon monoceros and Canis familiaris are most closely related because they both are mammals. They both have mammary gland which is the most prominent feature of mammals. They both have fur, ear, tail, forearms. The forearm of Monodon monoceros is modified into flippers for swimming and forearms of Canis familiaris is used for walking and running. They both are mammals and most closely related species.

answer; ///i believe that the correct answer is (d); ///