As larval they are immature animals and undergoes metamophosis, e.g., tadpole.
Porifera are sponges, they have no main organs or tissues. They are a loose aggregation of cells. To eat they pump water though their system and catch the particles in the water. A very basic cell structure.
A young frog is a tadpole and has a tale and no legs while the adult frog has legs, but no tail.
no, there is not much of a difference.
the adult has wings
the difference between a nymph and an adult cricket is that the nymph is one of the earlier stages in the life cycle of a cricket
A change from a larval form to an adult form is known as metamorphosis. Butterflies and frogs are prime examples of this.
Because standard metamorphosis includes a pupal phase. But frogs do not have a larval stage, only a larval and adult.
The larval stage of mollusks is called a trochophore, which is a free-swimming, ciliated larva that eventually develops into the adult form. For annelids, the larval stage is called a trochophore or a nectochaete, which also metamorphoses into the adult form after a period of growth and development.
No larval stage is the maggot (as in housefly) then they pupate and the adult emerges after metamorphosis. Those insects where the nymphs adults look like adults have only a 3-stage cycle egg, nymph, adult, with no larval or pupal stage.
Amfibians have a larval stage and a (sub)adult stage.
an adult is over 18 old, an infant is under 2 years
Amfibians have a larval stage and a (sub)adult stage.