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gills
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What are the outpockets of an anterior digestive tract that may develop into respiratory structures?
pharyngeal pouches
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 are the causes of esophageal pouches?
Esophageal pouches, also known as Zenker's diverticulum, are primarily caused by a weakening of the muscle layer in the esophagus. This weakening can be due to a combination of factors such as age, chronic acid reflux, and increased pressure in the esophageal area. Other contributing factors may include smoking, alcohol consumption, and a diet low in fiber.
How may types of fishes are there in the world?
101
What are the release dates for Robbing the Fishes - 1916?
Robbing the Fishes - 1916 was released on: USA: 17 May 1916
When did Nokku Yokoyama die?
Nokku Yokoyama died on May 3, 2007, in Ashiya, Hyogo, Japan of pharyngeal cancer.
What are some good brands of laminating pouches?
Some good brands of laminating pouches are Scotch Brand Laminating pouches. You can buy the product in a office depot store such as Staples. However, although Scotch is a good brand, it may not be found in office depot stores but online stores.
Why should the naso pharyngeal airway not be used if there is evidence of clear fluid coming from the nose or ears?
This may indicate a brain injury.
What population groups tend to get esophageal pouches?
Esophageal pouches, also known as Zenker's diverticulum, tend to occur more often in older adults aged 70 and above. However, it can affect individuals of any age group. Other factors that may increase the risk of developing esophageal pouches include a history of acid reflux, hiatal hernia, and certain genetic or anatomical abnormalities of the esophagus.
Which types of fish may be present in dams can there be whales or sharks or dolphins?
no mostly big fishes are found in seas only small fishes present in dams.
How many babies does it usually have?
If you're asking about fishes, the offspring may be uncountable.
What will happen if the plankton population decrease in this ocean system?
As fishes feed on plankton,fishes may starve due to decrese in population of planktons.
