lecithotrophic मीनिंग इन हिंदी

उदाहरण वाक्य

1. This species is unusual in that in produces lecithotrophic larvae which hatch as large pediveligers.
2. "' Lecithotrophic "'larvae generally have greater dispersal potential than direct developers.
3. In " Berghia stephanieae " the development is lecithotrophic ( feed off a yolk sac ).
4. Secondly the species releases unusual, previously unknown, uniformly ciliated lecithotrophic larvae, which are now known as War�n's larvae.
5. In temperate regions, about 25 % of species are lecithotrophic, depending on nutrients stored in the yolk of the egg where the main energy source is lipids.
6. Many fish species and some benthic invertebrates have lecithotrophic larvae, which are provided with a source of nutrition to use during their dispersal, usually a yolk sac.
7. Though some lecithotrophic species are capable of feeding in the water column, many, such as tunicates, are not, and must settle before depleting their food source.
8. In a few cases, the trochophore remains within the egg ( and is then called lecithotrophic  deriving nutrition from yolk ), which hatches to produce a miniature adult.
9. The planktotrophic larva is considered to be the ancestral larval type for echinoderms but after 500 million years of larval evolution, about 68 % of species whose development is known have a lecithotrophic larval type.
10. The planula larvae are likely to be lecithotrophic ( sustained by a yolk-sac ) and able to drift for a short time before settling on the seabed where they develop into polyps and found new colonies.