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when the young animal hatches out of the enve-lope or the mother gives birth. In the majority of animals, development occurs in the so called indirect fashion: embryogenesis results in a first phenotype, the larva. An example is the sea urchin, which can be taken as prototype of animal developments (Fig. 4.2). The larva itself
- Werner A. Mueller, Monika Hassel, Maura Grealy
- 2015
Sep 21, 2019 · The term larva applies to the young hatchling which varies from the grown up adult in possessing organs not present in the adult such as sex glands and associated parts. Insect development is...
Jan 1, 1999 · The aquatic tadpole and the terrestrial frog are prime examples. Some species display indirect development; larvae must metamorphose to transform into, or be replaced by, adults. Larval evolution provides the key to unlocking metazoan evolution and diversification.
- Brian K. Hall, Marvalee H. Wake
- 1999
Sep 2, 2024 · larva, stage in the development of many animals, occurring after birth or hatching and before the adult form is reached. These immature, active forms are structurally different from the adults and are adapted to a different environment.
- The Editors of Encyclopaedia Britannica
In many species, the larval stage is the one that lasts the longest, and the adult is a brief stage solely for reproduction. In the silkworm moths, for instance, the adults do not have mouthparts and cannot feed. The larvae must eat enough for the adult to survive and mate.
- Scott F Gilbert
- 2000
- 2000
Oct 20, 2020 · Luis Giménez highlights how phenotypic plasticity and in particular maternal traits affect larval development in crustaceans, how larvae with different developmental histories respond to ...
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Nov 22, 2014 · In the majority of animals, development occurs in the so called indirect fashion: embryogenesis results in a first phenotype, the larva. An example is the sea urchin, which can be taken as prototype of animal developments (Fig. 4.2).
