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What else can I help you with?
Do tunicates and lanceletes have back bones?
No. They are both chordates, which means during embryonic development they have a notochord, the same as vertebrates. This does not persist in tunicates, but it does in lancelets (adults still have a notochord). Neither tunicates or lancelets have a backbone.
How do lancelet's obtain oxygen?
Lancelets obtain oxygen through a process called diffusion. They do not have specialized respiratory organs; instead, oxygen diffuses across their thin body walls and into their bloodstream from the water around them. This is made possible by their simple body structure and the high surface area-to-volume ratio of their bodies.
Do lancelets have a backbone?
No, lancelets do not have a backbone. They are small, fish-like marine invertebrates that belong to the subphylum Cephalochordata and possess a notochord instead of a true backbone.
Do lancelets have pharyngeal pouches?
Yes, lancelets do have pharyngeal pouches. These pouches are openings in the pharynx that are important for filter feeding and gas exchange in these small marine animals.
How do sea squirts and lancelets protect themselves?
sea squirts protect themselves by squirting out a jet of water, hence the name, and they also have a tunic which is a layer of tissue covering them that can be thick and tough or thin and translucent, which protects them from predators. Lancelets spend most of their lives buried in the sand with only their heads sticking out, and have a hood that covers the mouth and sensory tentacles surrounding it thus protecting their bodies from predators.
Are lancelets ectotherms?
Yes. Lancelets are fish and all fish are ectothermic.
What Tunicates and lancelets are two subphyla of animals classified as what?
chordates
What some chordates such as sea squirts and lancelets do not have?
Chordates such as the sea squirts and lancelets do not have a backbone that is why they are called vertebrate chordates.
Do tunicates and lanceletes have back bones?
No. They are both chordates, which means during embryonic development they have a notochord, the same as vertebrates. This does not persist in tunicates, but it does in lancelets (adults still have a notochord). Neither tunicates or lancelets have a backbone.
Are lancelets filter feeders?
yes
How do lancelet's obtain oxygen?
Lancelets obtain oxygen through a process called diffusion. They do not have specialized respiratory organs; instead, oxygen diffuses across their thin body walls and into their bloodstream from the water around them. This is made possible by their simple body structure and the high surface area-to-volume ratio of their bodies.
How anaconda get water?
They drink - from the rivers they inhabit.
What is is the difference between tunicates and lancelets?
Tunicates and lancelets are invertebrates, while the other chordates are vertebrates.During their embryonic stage they have a flexible cord that supports their bodies which disappears in the adult stage. Some of these develop bones surrounding the cord in the adult stage rather than have it disappear.
What type of body cavity do lancelets have?
Acoelomate
How do lancelets move?
By contracting muscles in their body.
Do lancelets have a backbone?
No, lancelets do not have a backbone. They are small, fish-like marine invertebrates that belong to the subphylum Cephalochordata and possess a notochord instead of a true backbone.
Are lancelets dueterstome?
Yes, lancelets are deuterostomes. Deuterostomes are a group of animals characterized by their embryonic development, in which the blastopore becomes the anus. Lancelets belong to the phylum Chordata along with vertebrates, and they exhibit deuterostome development.
