Answer:
A
Explanation:
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Specific events in virus replication identified as targets for antiviral agents are viral adsorption, penetration, uncoating, and viral nucleic acid synthesis as well as viral protein synthesis.
Answer:
The correct answer about geologic time scale is that, it presents the correct sequence of events in the history of the earth.
Geologic Time scale is being recorded in the history of geologics. It is being broken into smaller and larger subdivisions and this helps us to know how events fit together.
In order to study the major events which are found in geologic history we should study the rock strata which is found around the world.
Explanation:
Answer: 
has aldehyde functional group.
Explanation:
Functional groups are specific group of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules.
A. 
has ketone 
functional group .
B. 
has carboxylic acid 
functional group .
C. has aldehyde 
functional group .
D. 
has ester 
functional group .
Thus has aldehyde (CHO) group.
