Options:
a. It is a type of virus that infects bacteria.
b. It is a type of bacteria that infects viruses.
c. It is a virus consisting of a protein coat and a DNA core.
d. It is a bacterial strain consisting of protein and a DNA core.
Answer:
<u>Option-(A, C):</u> It is a type of virus that infects bacteria, and it is a virus consisting of a protein coat and a DNA core.
Explanation:
- The bacteriophage is a form of unicellular cell that comprises of a very specific form of structure, having the genetic materials intact inside the protein coat and the rest of the body is termed to be more of a crystalline in nature. As, the phage is categorized for having the main host as the bacterial cell, and it replicates itself by using the two main pathways which are the following:
- Lytic cycle,
- Lysogenic cycle.
The sympathetic nervous system (SNS) is the division of the autonomic nervous system arouses the body and mobilizes its energy in stressful situations.
Environments are always changing so organisms need to adapt to survive. The organisms that survive are the ones that are fit to live in that environment, which is where survival of the fittest comes into play.