The collagen fibers of the osteoid make the overall bone matrix stronger by allowing it to resist bending and twisting forces. true or false

True

Explanation:

Within bone, several cells work in tandem to mediate bone production, monitoring and repair. Osteoids are secreted by one such cell, and comprise, signifiant sections of the entire bone matrix, and  this includes fibers of collagen which give bone its flexibility and mechanical strength.This allows bone to resist stretching and twisting forces.

Osteoblasts are highly specialized cells which formulate new bone through the production or secretion of parts of the organic matrix; this is referred to as the osteoid and mediate the calcification of osteoid during the formation of mature bone matrix, allowing it to resist stretch and twisting. Mature bone maintenance, monitoring and repair is mediated by osteocytes, which are mature bone cells.

answer: land bridge theory. land bridge theory held that shifting portions of dry land explained the finding of identical species on different continents. plate tectonic theory eventually eliminated the land bridge theory.

enzyme active site and substrate specificity

enzymes bind with chemical reactants called substrates. there may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. in some reactions, a single-reactant substrate is broken down into multiple products