Question

compare and contrast between sea squirts and lancelets?

Answer 1

Lancelets are slender animals that are partially buried in the sea bed, in shallow waters. ... The lancelets also possess notochords, but unlike sea squirts the notochords run the entire length of the body. Both sea squirts and lancelets have notochords, but are still considered invertebrates.

I hope you understand .

Answer 2

HLO MATE HERE IS UR ANSWER.

❤. COMPARISION OF SEA SQUIRTS AND LANCELET❤

⭐. Both are marine.

⭐. Perforated pharynx, endostyle and ectoderm lined atrium are common to both.

❤. CONTRAST BETWEEN SEA SQUIRTS AND LANCELETS.❤

⭐. a) sea squirt (Ascidian ) belongs to subphylun urochordata.

⭐. b)Lancelet( Amphioxus) belongs to the subphylum cephalochordata.

⭐. a)sea squirt body is unsegment and sac like.

⭐. b)Lancelet body is like a fish with segments.

⭐. a)Sea squirt has a protective test and sessile.

⭐.b) Lancelet has no test. It is a burrowing form.

⭐. a)Circulatory system is open type in ascidian.

⭐.b)Circulatory system is closed type in amphioxus.

⭐. a) In ascidian Larva in tadpole.

⭐. b) In amphioxus larva in lancelet.

⭐. a) In adult sea squirt, they are absent.But they are present in larva.

⭐. b) In lancelet, a we developed tubular nerve chord and notochord are present .

⭐. a) Ex: Ascidia is a sea squirt.

⭐. b) Ex: Branchiostoma is a Lancelet.