oral disk वाक्य

In this symbiotic relationship, the zoochlorellae and zooxanthellae provide nutrients to the anemone via photosynthesis and contribute to the bright green color of the anemone's oral disk and tentacles.
This is because the anemone tends to close up and " droop " and its now exposed column is actually dark green and slightly brown, but the hidden tentacles and oral disk are bright green.
The exceedingly well-preserved fossil showed a well-developed sucking oral disk, a relatively long branchial apparatus showing a branchial basket, seven gill pouches, gill arches, and even the impressions of gill filaments, and about 80 myomeres of its musculature.
Occasionally, " A . xanthogrammica " can be confused with large individuals of " A . sola ", but both of these other anemones have ( usually ) pink-tipped tentacles and a striped oral disk, unlike " A . xanthogrammica ".
The animal's exquisitely preserved fossils show a creature very similar to modern-day lampreys, having a well-developed sucking oral disk, a branchial basket, at least seven pairs of gill pouches and corresponding gill arches, impressions of gill filaments, and at least 80 myomeres of its musculature.