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Larval stage of mollusks and annelids?
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.
What is the growth development of Annelid?
Annelids, such as earthworms and leeches, exhibit a developmental process characterized by spiral cleavage and a coelomate body plan. They typically undergo a trochophore larval stage, which is a free-swimming, ciliated larva, before transitioning into the adult form. Annelids show segmentation, where the body is divided into repeated segments, allowing for more complex movement and specialization of body functions. Overall, their growth involves both an increase in size and the maturation of body systems as they progress from larval to adult forms.
Among coelomates which of these develops by spiral cleavage and the mouth forms before the anus?
Annelids, such as earthworms, are coelomates that develop by spiral cleavage and have a mouth that forms before the anus during embryonic development.
What is the distinct larval form known as in crustaceans?
The distinct larval form known in crustaceans is called a "nauplius." This early stage of development is characterized by a simple body structure with a single eye and two antennae, allowing it to swim in the water column. As crustaceans grow, they undergo several molts and transition through various larval stages, eventually developing into more complex forms.
Does an earthworm have hair?
Earthworms have no fur or hair of any kind. You may be confusing them with caterpillers, which are worm-like larval forms of insects, that do have fur (but fur of the insectile variety, composed of chitin rather than keratin, unlike animal fur).
Where do the larval forms of amphibians live?
Tadpoles will live in bodies of fresh water, big or small.
What are some animals thatare in the complete 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.
What does embryo-sparring mean?
an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life
What are the traditional dance forms that involve the use of ajanubahu movements?
Traditional dance forms that involve the use of ajanubahu movements include Bharatanatyam and Odissi.
What is the correct form of the word involve?
The correct forms for the verb are: involve, involves, involving, involved. Example use:I will not involve you in this debate.
Early amphibians had moist breathing sacs called?
Gills, the larval forms of amphibians still have gills wich drop off eventually at the end of metamorphosis.
What is another name for insect lava?
Another name for insect larvae is "caterpillars," specifically when referring to the larval stage of butterflies and moths. In a broader context, insect larvae can also be generally referred to as "grubs" or "larvae," depending on the species. These stages are crucial for the growth and development of insects before they metamorphose into their adult forms.
