The progressive changes going on with the primordial germ cell resulting its differentiation into primary oocyte; secondary oocyte; spermati and finally spermatozoa is called metamorphosis in spermatogenasis.
Javeed Farooqi
M.sc
Most amphibians undergo metamorphosis during development. The axolotl is an amphibian that does not undergo true metamorphosis, remaining in a semi-juvenile state.
Metamorphosis.
it is diffrent becase metamorphosis laying an egg and mammals is not
Metamorphosis.
Direct Metamorphosis OR incomplete Metamorphosis OR simple Metamorphosis:- It is a process in which an organism changes from NYMPH to an ADULT in three stages, where there is some resembles with the previous stage. Indirect Metamorphosis OR Complete Metamorphosis OR Complex Metamorphosis:- It is a process in which an organism changes from a LARVA to an ADULT in four stages, through drastic changes.
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Metamorphosis
These insects either have hemimetabolous development, and undergo an incomplete or partial metamorphosis, or holometabolous development, which undergo a complete metamorphosis, including a pupal or resting stage between the larval and adult forms. In hemimetabolous insects, immature stages are called nymphs.
Metamorphosis doesn't occur in human because it is transformation from immuture creature to an adult. In case of human, we observe that from infancy to old age no such transformation occurr. Hence we can say that there is no metamorphosis appearantly
The type of metamorphosis in which the young resemble an adult is called direct development. In this type of metamorphosis, offspring hatch or are born looking like miniatures of their parents, without going through drastic changes in body form.
Dolphins undergo a form of development known as direct development, which is neither complete nor incomplete metamorphosis. Unlike insects that experience distinct life stages, dolphins are mammals that are born as fully formed calves, resembling miniature adults. They grow and mature without undergoing significant morphological changes. Thus, their development is characterized by growth rather than metamorphosis.
The two processes that are directly responsible for the growth and development of a butterfly are metamorphosis and molting. Metamorphosis involves distinct stages of development, from egg to larva (caterpillar) to pupa (chrysalis) to adult butterfly. Molting is the shedding of the exoskeleton as the butterfly grows larger during each stage of its development.