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When did transformational grammars first appear?
1957
Which class did the vertebrate lung first appear?
In Bony Fish (Osteichthyes)
What was the first animal to appear on the US coin?
The first animal to appear on a U.S. coin was the eagle, which made its debut on the reverse side of the 1792 half disme (a denomination of currency). The eagle has since become a prominent symbol on U.S. coinage.
Name the phase of cell division when duplicated chromosomes first appear?
The phase of cell division when duplicated chromosomes first appear is called the prophase. In prophase, the chromatin condenses into visible chromosomes, and the nuclear envelope breaks down, allowing the chromosomes to be more clearly visible.
Why is the number of pharyngeal gill slits in sharks fewer than that of other marine fishes?
"Jaws are believed to have evolved from the first pair of gill arches of agnathans. The second pair of gill arches became support structures for the jaws." - Biology Laboratory Manual, Ninth Edition Darrel S. Vodopich and Randy MooreSo, sharks have fewer gill slits because the first two pairs became the jaw and the structural support for the jaw.
What chordate trait evolved first?
The first chordate trait that evolved is believed to be the presence of a notochord, a flexible rod-like structure that provides support. This feature appears in the earliest chordates, such as cephalochordates and early vertebrates, serving as a precursor to the vertebral column in more advanced chordates. Other key traits, such as the dorsal nerve cord, pharyngeal slits, and post-anal tail, evolved subsequently.
What are 3 reasons why a sea tunicate is considered a chordate?
Sea tunicates are considered chordates for three main reasons: First, they possess a notochord, a flexible rod that provides structural support during their larval stage. Second, they exhibit a dorsal nerve cord, which is a characteristic feature of chordates. Finally, they have pharyngeal slits at some stage of their development, which are indicative of the chordate lineage. These traits, although primarily present in their larval form, align them with the broader characteristics defining chordates.
Why did microsft became so popular?
Because they were one of the first companies to produce a central processing unit which was stable and functioned properly.
What year did the key first appear?
What year did the key first appear?
What is the first true computer called?
The Z1 was the first machine to be called a modern computer. It was also one of the only ones that actually functioned during the time of its creation.
Was the first computer quick?
The first computer functioned very quickly, by comparison with the work of people trying to perform the same calculations. However, by comparison with modern computers, the first one was painfully slow.
When do freckles first appear?
Freckles are inherited. They first appear in childhood and if you are going to have them, they usually all appear by your 21st birthday.
When did the Pascal Triangle first appear?
Pascal's tiangle first appear in the year 1653.
What was the first comedy to appear in the contents of the First Folio in 1623?
The first comedy to appear in the contents of the First Folio in 1623 was The Tempest.
Is an earthworm an annelid?
No, an earthworm is not a chordate because it has a nerve cord that does not run down the back.
Inventor of the dynamo?
The first dynamo or electric generator was invented by Michael Faraday in 1831. Although it functioned as one, it was not a pure dynamo because it lacked a commutator.
When nails first appear?
Nails first appear on a child in the womb of the mother around the 2 month.
