Answer:
option c. viroid control
Explanation:
The chestnut tree in Europe is infected by a fungus called <em>Cryphonectria parasitica </em>that<em> </em>causes a disease called chestnut blight. The disease is controlled by a biological control method called hypovirulence.
The hypovirulence is a virus that attacks the fungal pathogen (<em>Cryphonectria parasitica </em><em>)</em> of chestnut tree. This fungal virus decreases the ability of fungal pathogen to cause chestnut blight disease. This technique prevents the chestnut plant after huge destruction of it in Europe.
The pathogen that have virus is introduced naturally over the plant. This reduces the infection and allows the natural growth of trees. Thus, option C is correct.
The correct answer is "<span>withdraw several milliliters of urine from the port on the collection tubing, using a syringe and needle".
In collecting urine samples, the goal is to avoid contamination. In this case since the patient has in-dwelling foley catheter inserted, collection of the urine from the urine bag is considered contaminated; therefore the health practitioner should collect the urine specimen from the port of the collection tubing.</span>
Answer:Osteoblasts work in teams to build bone.
Explanation:They produce new bone called "osteoid" which is made of bone collagen and other protein. ... They regulate passage of calcium into and out of the bone, and they respond to hormones by making special proteins that activate the osteoclasts. OSTEOCYTES are cells inside the bone.