trochosphere In A Sentence
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- B, The Gastrula has become a trochosphere by the development of the ciliated ring vr (optical section).
- The external surface of the trochosphere is formed of a number of ciliated test-cells.
- The larva swims by a ri ig of cilia, which corresponds with the praeoral circlet of a trochosphere.
- This trochosphere is the characteristic larva of Mollusca, Annelida T OT (After Abbott, T5ky5 Zool.
- The larva is seen in optical section, and its distinguishing feature is the ciliated lobed band (vl, sl, dl), which corresponds to the pre-oral ciliated band of a trochosphere-larva..
- E, The trochosphere passing to the veliger stage, dorsal view showing the formation of the primitive shell-sac.
- The former hypothesis with its variants may be called the Trochosphere-hypothesis, the latter the Gastraea-hypothesis.
- This little creature, which has many of the features of a trochosphere larva, swims about at the surface of the sea for about a month and grows rapidly.
- By the development of a ciliated ring just in front of the mouth the embryo becomes a trochosphere.
- When the middle and hinder regions of the blastopore are closing in, an equatorial ridge of ciliated cells is formed, converting the embryo into a typical trochosphere.
- From the trochosphere stage the free larvae pass into that of "veligers.".
- The larval form thus produced is known as the trochosphere.
- It has simply been traced as far as the formation of a diblastula which acquires a ciliated band, and becomes a nearly spherical trochosphere.
Similar words: Tropotaxis, Troffer, Tropic, Trolle, Tromso, Trog, Trophoderm, Troilism, Tropical Cyclone, Trouble Haunted, Trophallaxis, Trones, Tropology, Trochaic, Troshing, Trochi, Troil, Trolls, Tropical Fish, Trommels