The correct answer is <span>C. You cannot view live specimens because the necessary preparation kills cells. </span>
The answer is pretty self-explanatory. Unlike it, regular microscopes can view living creatures such as bacteria or similar.
It created an opportunity for the mammals to become dominant on earth by wiping out the dinosaurs.
The virus needs to speak the molecular language of cells. This is how he manages to dominate and enslave them so that they become factories for new viruses, producing the proteins that the infectious agent requires to assemble its descendants. If this conversation is not fine-tuned, even if the virus has the key and enters, it is doomed to failure.
<h3>Why does a virus lethal to us not infect animals?</h3>
For a virus to be able to enter a cell, it must have the right key. And this key, which are the proteins on the surface of viruses, has to enter the correct lock, the receptors that are on the cell membrane. Cells are actually houses with many different doors and locks. Some viruses have keys that open the lock of any cell and any kind of host, and others do not, so the infection caused by viruses is specific.
With this information, we can conclude that some viruses have keys that open the lock of any cell and any kind of host, and others do not, so the infection caused by viruses is specific.
Learn more about virus in brainly.com/question/1427968
#SPJ1
A change in the morphology of the leaves generated can frequently be used to detect when an apical meristem transition from the juvenile to the mature vegetative phase.
<h3><u>Apical meristem: What is it?</u></h3>
The growth zone within the tips of new shoots and leaves as well as the root tips of plants is known as the apical meristem. One of three meristem types, or tissues that can differentiate into distinct cell types, is the apical meristem. Plant growth takes place in the meristem tissue.
Apical growth is defined as taking place at the top and bottom of the plant. While lateral meristems are found between branches, intercalary meristems grow in girth like those of woody plants. The apical meristem is essential for expanding both the roots' and leaves' access to light energy and nutrients. For plants to succeed, they need to grow in both of these directions.
Learn more about apical meristem with the help of the given link:
brainly.com/question/798517
#SPJ4
