D.
variable-ratio schedule of reinforcement.
<span>He could not recognize things by sight that were familiar to touch</span>
Answer;
-Step E
Explanation;
-The lysogenic cycle is a viral replication cycle
that does not kill the host immediately. The lytic cycle is the other type of viral replication cycle that results in the destruction of the infected cell and its membrane.
-All viruses undergo a replication cycle in their human host cell consisting of adsorption, penetration, uncoating, nucleic acid replication, maturation and release stages. During the maturation and release stage the virus release a protein that causes the cell wall to burst.
The seed plants are survivors.
"Recitative" is the opposite of aria.
<u>Answer:</u> Option D
<u>Explanation:</u>
Musical oration of the kind common in the narrative and dialog sections of the opera and the oratorio, sung at the rhythm of the regular speech with several words along the same line is understood as Recitative.
While an aria is a long song that is performed by a single instrument and normally appears in an opera. It is an Italian word which means "air" in the 18th century. An artist would sing a song that would convey his or her emotions The aria had more interest in music than the recitative.
