To you remember the names of the parts of a neuron, your teacher shows you a picture of small branches that extend from the neuron cell body and spread like miniature tree roots. she explains that, because of their treelike appearances, the scientific name of these "branches" comes from the greek root word for "tree." these parts of the neuron are called:

Dendrons

Explanation:

Neurons constitute the basic unit of the nervous system in the animal's body. Structurally they are made up of;

The dendrites/dendrons are similar to branches of trees and because of their tree-like structure, they got the name 'dendron' which is a Greek word for 'trees'.

The dendrons duty is to receive message from other neurons in the body and transmit such message to the cell body.

i think the answer is

mass

an active site is a region that is present on an enzyme where the reactants or the substrate molecules we can say bind and experience a chemical reaction. the substrate is basically a reactant whose concentration is changing and that is converting into a product after binding at the active site of an enzyme