Answer:
1 and 4
Explanation:
Streptobacilli are linked together in chains, the bacterium is gram positive and the generally rod-shape. The genus could be aerobic ( required oxygen for their growth), falcultative anaerobe (in the absence of oxygen, they can switch to fermentation).
Calcitonin is ahormone that is poduced in humans by the parafollicular cells (other wise known as c-cells) of the thyroid gland. Therefore, inhibition of the osteoclasts directly reuces the amount the amount of calcium released into the human blood. This is just a simple explanation so now all you have to do is understand what will happen when you combine calcitonin and parathyroid.
All of the above in order to conclude this scientific experiment.