The answer is decay. Decay is the principal natural means of recycling solid waste.
All viruses contain nucleic acid, either DNA or RNA (but not both), and a protein coat, which encases the nucleic acid. Some viruses are also enclosed by an envelope of fat and protein molecules. In its infective form, outside the cell, a virus particle is called a virion.
Organelles-cells-tissues-organs-organ system-organism
Answer:
Hii! There also can be 5 stages and those stages are:
<em>- testing</em>
<em>- questioning</em>
<em>- building</em>
<em>- feedback </em>
<em>- summarizing</em>
