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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The answer is dopamine. The drug, chlorpromazine, has the capability of blocking dopamine in which helps schizophrenic patients for they were able to calm the patients that are schizophrenic in regards with their emotional feelings. This has help them calm down as it has the function of blocking the dopamine receptors.
I believe the answer is: Type A
People with type A personality tend to have the chracteristics that structured for them to compete and dominate other individuals. (this includes <span>hard-driving, competitive, perfectionist, impatient, agressive, etc)
</span>On average, they tend to achieve more in their career but would develop higher stress level.
Answer:
Explanation:
You are nothing without your problems...Solving problems makes you stronger & move forward. Imagine how terrible could life be without problems, when all your worries are gone...when you're an f
ree bird, when there's nothing to be solved
Answer:
`D
Explanation:
The Supreme Court can disallow a law on the grounds that it was unconstitutional thus establishing the of judicial review and the authority of Supreme Court as the watchdog of the constitution.
