The interaction is seemingly neutral for one of the organisms. For example, a barnacle attached to a whale can travel thousands of miles collecting and filtering food from the moving water. The whale doesn't seem to be affected by the little hitchhikers.
Answer:
<em>slat</em><em>e</em><em>,</em><em> phyllite</em><em>,</em><em>schist</em><em> </em><em>and</em><em> </em><em>gnei</em><em>ss</em>
The best way for adolescent to build and protect his or her bones is to ingest food products that are rich in calcium for it is known to make bones stronger. Another way is to be able to do exercise as a daily routine so that the bones are exercised every day to prevent bone disease, this will stenghten the bones and make them more stronger.