<span>Successive decomposition of dead material and modified organic matter results in the formation
of a more complex organic matter called humus. As they
break down the organic matter, any excess nutrients are
released into the soil in forms that plants can use.</span>
Answer:
<em>When focusing on a slide, ALWAYS start with either the 4X or 10X objective. Once you have the object in focus, then switch to the next higher power objective. Re-focus on the image and then switch to the next highest power.</em>
The enzymes that are used to replicate a virus are synthesized by the host cell. That is option A.
<h3>Process of viral infection.</h3>
A virus is a microorganism that has the ability to reproduce only by infecting a living host.
The main features of a virus include:
- nucleic acid genome ( RNA or DNA)
For a virus to be able to cause an infection,it has to pass through the following steps:
- Attachment of the virus to the host cell.
- Entry of the viral genetic material into the host cell
- Genome replication and gene expression: through the ribosomes of the host cells, enzymes are released which are used to replicate the invading virus to produce new ones.
Therefore, the enzymes that are used to replicate a virus are synthesized by the host cell.
Learn more about virus here:
brainly.com/question/17395741
Fertilization occurs in the Fallopian tubes. The egg cell is released from the ovaries and travels through the Fallopian tubes where is meets the sperm cell. This is when fertilization occurs.
