Single Tree Selection : is the most common cutting in which scattered individual trees of multiple age classes
Group selection : is under this system , a number of group or small openings created by the removal of several adjacent trees
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The slight positive charges on the hydrogen atoms in a water molecule attract the slight negative charges on the oxygen atoms of other water molecules. This tiny force of attraction is called a hydrogen bond.
Answer:
Las bacterias pueden utilizar la mayoría de los compuestos orgánicos y algunos inorgánicos como alimento, y algunos pueden sobrevivir a condiciones extremas.