Many insects go through an elaborate development called metamorphosis.They move from a larval stage into a pupal stage and after a time emerge as an adult.Which of the following statements regarding this metamorphosis is true?
A)This metamorphosis involves the total rearrangement of all larval cells and contents,which are used in the growth and development of the adult.
B)This metamorphosis involves the partial rearrangement of some of the larval cells and contents,which are used in the growth and development of the adult.
C)This metamorphosis involves the total rearrangement of all pupal cells and contents,which are used in the growth and development of the adult.
D)This metamorphosis involves the absorption of nutrients from the pupal case prior to emerging as an adult insect.

Question

Quizplus · Accepted Answer

Metamorphosis involves the total rearrangement of all larval cells and contents, which are used in the growth and development of the adult. This process is called histolysis, which means the breakdown and reorganization of tissues. During metamorphosis, the larval cells and tissues are broken down and the components are reused to build the adult structures. Therefore, the pupal stage is a time of extensive cell growth and differentiation, rather than rearrangement. Option B is incorrect because it suggests partial rearrangement, which is not the case. Option C is incorrect because it refers to pupal cells, whereas the restructuring occurs in the larval cells. Option D is incorrect because the nutrients are absorbed by the larval cells, not the pupal case.

Many Insects Go Through an Elaborate Development Called Metamorphosis