<span>In January 1830, in a dramatic encounter on the floor of the United States Senate, the debate over the nature of the Union took an alarming turn. The debate moved beyond the exchange of alternative views on how to administer the federal government to accusations and recriminations about the destruction of the federal government and the Union. States’ rights and nationalist positions, which previously were adopted without regard to a consistent pattern of sectional identification or alignment, were defined in a way that portended political violence between irreconcilably opposed sections. The event that presented this portent of sectional discord was the debate over the nature of the Union between Daniel Webster of Massachusetts and Robert Y. Hayne of South Carolina.</span>
in the course of fish evolution, two of the gill slits slowly advanced into the jaws.
The evolution of fish started about 530 million years in the past at some point during the Cambrian explosion. It become during this time that the early chordates advanced the cranium and the vertebral column, main to the first craniates and vertebrates. the first fish lineages belong to the Agnatha or jawless fish.
The earliest fish, corresponding to living hagfish, developed about 550 million years in the past. Diversifications that in the end advanced in fish include an entire vertebral column, jaws, and an endoskeleton manufactured from bones in preference to cartilage. Fish live in the course of the sea and in freshwater lakes and streams.
New studies have uncovered the genetic foundation of gill covers in fish, which came about over 430 million years ago. It sheds light on one of the most essential evolutionary traits for fish, in addition to over vertebrates.
In jawless fishes, a sequence of gills opened behind the mouth, and those gills became supported by way of cartilaginous elements. the primary set of these elements surrounded the mouth to shape the jaw.
Learn more about the evolutions of fishes here: brainly.com/question/1426050
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Humans have 5 stages ofor sleep, stages 1,2,3,4,5 . They don't really have specific names , but for example stages 1 and 2 are typically characterized as "light sleep" Stages 3 and 4 are "Middle sleep" and part of 4 and 5 are REM. Part two of your question is REM (Rapid Eye Movement) which occurs in stages 4-5.
I recently did a speech on this Topic! Let me know of you don't understand ! I hope this helps! :)
Answer:
C
A government official is a person who has been elected to a government office. The answer to this question is C. Hope it helps!
<span>According to the text, nonverbal flirting behavior may signal interest to a potential partner.
Nonverbal communication refers to the communication without the use of words - so instead of speaking, you can flirt using your eyes, your touch, your lips, etc. There are many things you can do to show someone you are interested in them, without actually saying anything.
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