Each egg has a large yolk sac and the larva feeds on this while it develops inside the egg, emerging fully formed as a juvenile salamander.

Here, the imago develops from imaginal discs found inside the larva.

The female then separates from the feeding stage and attaches herself to another host, where the larva in her develops.

The left hand side of the larva develops into the adult organism while the right hand side eventually being absorbed ; the left hand side typically becomes the oral plate.

In some species, the larva briefly develops a segmented body before transforming into the adult body plan, supporting the theory that echiruans evolved from segmented ancestors resembling more typical annelids.

The larva develops into the hydroid stage of the life-cycle, a tiny sessile polyp called a scyphistoma.

In all other species, the egg develops into a free-swimming larva, typically after around three days of development.

The larva develops rapidly, consuming the pollen ball and entering diapause when the pollen is fully consumed.

The resulting zygote develops into a ciliated larva that escapes from the mother to seek out new hosts.

Once it finds a host, the larva loses its cilia and develops into a syncitial plasmodium larva.

The tunic develops early in embryonic life, and extends to form a fin along the tail in the larva.

* Deworm pet dogs — canine and feline hookworms rarely develop to adulthood in humans ( Ancylostoma caninum, the common dog hookworm, occasionally develops into an adult to cause eosinophilic enteritis in people ), but their invasive larvae can cause an itchy rash called cutaneous larva migrans.

At the second stage ( metanauplius ), the larva develops the small shell.

Once fertilised, the eggs hatch into a free-living trochophore larva, which develops into a veliger larva that more closely resembles the adult, but lacks the extreme elongation of the adult body.

The first developmental stage after hatching is a planktonic larva ( 1 mm ) called the zoea that develops into a postlarva ( megalopa ), and finally a juvenile.

In that case, a cysticercus ( a larva sometimes called a " bladder worm ") develops in the human and the human acts like an intermediate host.

The brachiolaria develops from the bipinnaria larva when the latter grows three short arms at the underside of its anterior end.

The adult starfish develops only from the hind-part of the larva, away from the sucker.

This pattern is lost by the time the organism develops into a larva, but wingless is still expressed in a variety of tissues such as the wing imaginal discs, patches of tissue that will develop into the adult wings.

The female then separates from the feeding stage and attaches herself to another host, where the larva in her develops.

During the embryonation of the egg, a larva called a miracidium develops from germinal cells.

This bilaterally symmetrical larva, called an echinopluteus, subsequently develops a type of pentaradiate symmetry that characterises echinoderms.

The process of oviposition in Dolichomitus imperator: 1 Tapping with her antennae the wasp listens for the vibrations that indicate a host is present ; 2 With the longer ovipositor, the Wasp drills a hole through the bark ; 3 The wasp inserts the ovipositor into the cavity which contains the host larva ; 4 Making corrections ; 5 Depositing eggs ; 6 Depositing eggs.

Although some species hatch directly into the adult form, many have a trochophore larva, which metamorphoses into the adult after anything from a day to a month, depending on species.

This axial cell may develop asexually into vermiform juveniles or it may produce eggs and sperm that self-fertilize to produce a ciliated infusiform larva.

Development into the adult form takes weeks or months, and the larva moults several times as it grows in size.

The larva transforms into a pupa ( or chrysalis ) by anchoring itself to a substrate and moulting for the last time.

A larva ( Latin ; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults.

When disturbed, the larva will retract its head into its case and hold the front opening closed.

The exception is a larva fed solely on royal jelly, which will develop into a queen bee.

The larva is about 8 mm ( ⅓ inch ) long and is sometimes called the cheese skipper for its leaping ability-when disturbed, this tiny maggot can hop up to 15 cm ( six inches ) into the air.

* Once ingested, the larva will remain dug into a villus in the small intestine for about 2 – 3 days until it is fully developed for migration to the ileo-cecum section of the gastrointestinal tract.

Initially a simple ball of cells, the blastula soon transforms into a cone-shaped echinopluteus larva.

Soon the larva sinks to the bottom and metamorphoses into adult form in as little as one hour.

A fertilised egg hatches into a nauplius: a one-eyed larva comprising a head and a telson, without a thorax or abdomen.

The worm senses the temperature change and discharges its larva into the water.

The eggs are carried under the mother's hood, until the young hatch into six-legged larva, which later molt into their eight-legged adult forms.

These glochidia larvae are drawn into the fish's gills where they attach and trigger a tissue response that forms a small cyst around each larva.

Parasites can get into the intestine by going through the mouth from uncooked or unwashed food, contaminated water or hands, or by skin contact with larva infected soil, they can also be transferred by the sexual act of anilingus in some cases.

After mating, mystacocarids lay tiny eggs which hatch into a nauplius or metanauplius larva.

Then, the larva spins a silk cap over the cell's opening and, during the next two weeks, transforms into an adult, a process called metamorphosis.