Answer: Differentiation
Explanation:
The differentiation is one of the type of normal process that occur due to the selective change and it is distinct from in the function. The differentiation is basically refers to the breaking into the smaller parts.
According to the question, the formation of the different types of cell which cause the genes sometime ON or OFF then this process is basically known as the cell differentiation. This process is mainly occur due to the process of genes expression.
Therefore, Differentiation is the correct answer.
They manipulated the length of time between seeing and recalling sets of 3-letter stimuli while preventing rehearsal.
Answer: d. Physical depreciation
Explanation:
The allowance of the use of the second hand materials showed the materials met the standard required but this is subjective as the material life span has been shortened due to existing usage of the material.
A cloud of gas and dust in outer space, visible in the night sky either as an indistinct bright patch or as a dark silhouette against the other luminous matter