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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Answer:
I would say this is niche partitioning.
Explanation:
Every organism has a certain range of requirements called a niche. The competitive exclusion principle states that two organisms cannot occupy the exact same niche without one out-competing the other. Niche partitioning is basically changing some aspects of a niche so that there is no need for competition.
Certain map projections, or ways of displaying the Earth in the most accurate ways by scale, are more well-known and used than other kinds. Three of these common types of map projections are cylindrical, conic, and azimuthal
Answer:
This question is incomplete. It is missing names and descriptions of the court cases descriptions that are needed to be matched. Here they are (correctly matched):
<em>Tape v. Hurley: </em><em>The California Supreme Court forced San Francisco to admit Chinese students into public schools.
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- This case ended in <u>March 1885</u>, with the Supreme Court decision that refusal to admit a Chinese American student Mamie Tape to the all-white Spring Valley School was unlawful. This was a landmark court case.
<em>United States v. Wong Kim Ark: </em><em>The Supreme Court ruled the Fourteenth Amendment awarded citizenship to children of Chinese immigrants born on American soil.
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- This case was decided on <u>March 28, 1898</u>, with the Supreme Court ruling that Wong Kim Ark, who was born in San Francisco in 1873 to Chinese couple, was unlawfully denied entry to the United States after his trip abroad.
<em>Yick Wo v. Hopkins:</em><em> The U.S. Supreme Court ordered the city of San Francisco to grant licenses to Chinese laundries.
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- This case was decided on <u>May 10, 1886</u>, with the Supreme Court ruling that the administration of law in a discriminating manner is an infringement of the Equal Protection Clause in the Fourteenth Amendment to the U.S. Constitution. In particular, here out of 200 applications, only one permit to operate a wooden building laundry was granted to a Chinese owner, while all non-Chinese owners always received permits.
Answer:
Research is practical and realistic because it is based on the scientific method, which demands that research should be start with an hypothesis, that should be falsifiable (meaning that it can be proven right or wrong), followed by a scientific study in which the hypothesis is tested.
If the hypothesis is proven to be true, it does not mean that is conclusions will hold true for eternity, they could be proven wrong by further studies.
For this reason, research is both practica, because it is based on a practical method: the scientific method, and realistic, because it has a limited scope, and limited, verifiable understanding of reality, and can be proven wrong with other studies.
