👉 In the context of biology, a prosubarctic branch is a type of branch that contains only one cell. These cells are called prosubarbins or subarbins in the scientific terminology. The term is often used to describe a group of organisms that live on land but do not have limbs, and which lack a backbone. Prosubarbins are found in many different habitats around the world, including forests, grasslands, deserts, and other environments where they can survive without the