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A. Humans.
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∙ 12y ago
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What are three structures that all chordates have in common?
Chordates are animals that comprise the vertebrates. The three structures that are present during their development are the notochord, a tubular nerve cord and gill slits leading into the pharynx.
What is the function of pharyngeal slits?
The main function of the pharyngeal slits is to breathe. They are openings that allow breathing underwater using the throat. They are also necessary for some organisms to filter feed.
Why do fetuses develop pharyngeal slits?
The development of pharyngeal slits in fetuses is believed to be a call back to our evolutionary history. As I'm sure your aware humans and any living vertebrates belong to the phylum Chordate which is part of the Deuterostomes branch of the animal kingdom. You may have heard about the theory of how modern day mammals and so hence man evolved from fish. Well the presence of pharyngeal slits in fetuses is one piece of evidence for this theory. As pharyngeal slits are used in simple organism such as Hemichordates to filter feed in water. Organisms classified as Deuterostomes are done so by the presence of these pharyngeal slits at some stage during their development ( In fish embryos it is the pharyngeal slits which develop into the gills), amongst some other similar developmental patterns. I hope this helps to answer your question.
What drugs did Carl Sagan use?
Carl Sagan is known to have used marijuana at some point in his life.
What are the main features that seperate organisms into phylum sporozoa?
They at some point in their life produce spores and they have no locomotion.
What animals have a tubular nerve cord and gill slits at some point in their lives?
No, not all vertebrates have tubular nerve cord.
What distinguishes a chordates?
At some point in all chordates' lives, they have a notochord, a nerve chord, gill slits and a tail. Some chordates are more complex though.
What is the common name for chordates?
Chordate is the common name for a very large group of animals (kingdom Animalia) that, at some stage in their life cycle, have something resembling a spinal chord or column, and gill slits. The phylum is called Chordata, and includes humans (we have gill slits in our fetal stage.
The three things all chordates have?
Chordates all possess a notochord (dorsal supporting rod), gill slits, and a dorsal nerve cord some time in their life cycles.
What are the main four characteristics of chordates?
#1. A supportive anterior to posterior notochord #2. A dorsal, hollow nerve cord #3. Pharyngeal gill slits(at some point in their ontongenic development) #4. A yolk sac(again, at some point in their ontongenic development)
What organisms have pharyngeal gill slits and a dorsal hollow nerve cord at some time in their development?
Chordates
Are perch in the phylum chordate?
Yes. Perch are in the Phylum Chordata as they exhibit the four major characteristics of a chordate: a notochord, pharyngeal gill slits, a hollow dorsal nerve cord, as well as a post anal tail.
What features other than a backbone do all vertebrates have in common?
#1. A supportive anterior to posterior notochord #2. A dorsal, hollow nerve cord #3. Pharyngeal gill slits(at some point in their ontongenic development) #4. A yolk sac(again, at some point in their ontongenic development)
What are three structures that all chordates have in common?
Chordates are animals that comprise the vertebrates. The three structures that are present during their development are the notochord, a tubular nerve cord and gill slits leading into the pharynx.
Why do some sharks have 3 gill slits and some have 5?
some live in saltyer water than others and the extra gills let more oxogen in the saltyer waters
What is a panthers phylum?
The panther, and all animals that possess a dorsal nerve cord (nerve fibres that run down the animal's back), a notochord (cartilaginous tissue that supports the aforementioned nerve fibres), pharyngeal slits (gill-like slits connecting the throat to the outside of the neck, and a post-anal tail (a protrusion that continues past the anal opening) at some point in their life (including the embryonic stage) are members of the phylum Chordata.
How does the respiratory in fish work?
Most fish can only breathe water. They do this by pulling water in through their mouths, and forcing the water back out through their gill slits (which are located behind their heads). As water passes through the gill slits, capillaries absorb oxygen from the water and release carbon dioxide into the water. However, there are some fish (called lungfish) which evolved lungs. These fish can breathe air when necessary, but usually breathe water.
