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What period of the paleozoic Era did the first vascular plants invade the land successfully and became widespread?
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∙ 11y ago
Silurian period
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∙ 11y ago
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What is one major geologic development during the Paleozoic era?
Vast forests of plant life that eventually became buried in the changing surface of our planet, and today furnish us with what we call "coal".
Why is there debate over how dinosaurs became extinct?
The Paleozoic, Mesozoic, and Cenozoic eras comprise the most recent 10% of Earth's geologic history.The Paleozoic era is marked by seven distinct periods. These consisted of dramatic climate changes, multiple life explosions, shifting continents, and new mountain ranges.A mass extinction at the end of the Paleozoic era left only 5% of the species on Earth, which made way for the age of the dinosaurs (and lasted 150 million years).The Mesozoic era had a warm, stable climate, leading to the development of rain forests and good conditions for dinosaurs.The supercontinent Pangaea broke apart during the Mesozoic era. Over millions of years, continents assumed their present-day positions.The first mammals appeared during the Mesozoic era.Scientists think the extinction of the dinosaurs was most likely caused by several large events such as volcanism and impact from a comet or asteroid
What was Velcro first used in?
Velcro was designed for and originally used as a fastener for clothing. However, it was slow to be adopted by the fashion industry due to the way the original design looked when incorporated into clothing. It was not until many years later that the manufacturing process was perfected and Velcro's use became widespread in a wide variety of applications.
What are two groups of seedless plants?
Ferns are the most abundant group of seedless vascular plants, with about 12,000 living species. Recent research indicates that they may be the closest relatives to the seed plants. The fossil record indicates that ferns originated during the Devonian period about 350 million years ago and became abundant and varied in form during the next 50 million years. Their apparent ancestors had no broad leaves and were established on land as much as 375 million years ago.
What was Albert Einstein's contribution to our understanding of photoelectric effect?
He was the first one to successfully explain this effect, and thus created the basic form of what became modern Quantum Mechanics (a theory that in its final form he rejected because it is probabilistic not deterministic).Note: Einstein did not receive his Nobel Prize for Relativity, but for his work on Brownian Motion and the Photoelectric Effect.
Land-based animals first became common?
Paleozoic era
What is a disease that became widespread in Ancient Greece?
Plague.
A Washington office complex that became a symbol of the widespread corruption of the Nixon administration?
The Watergate Complex in Washington, DC became a symbol of the corruption widespread during the Nixon Administration.
What Epoch in which grazing mammal became widespread?
Miocene Epoch
What was the result of progressive attitude towards non whites?
Segregation become widespread and the norm novanet
What shaded area of the graph best represents the percentage of marine organisms that became extinct at the end of the Paleozoic?
The area that best represents it
What happened to many land and sea animals during Paleozoic era?
Many of the animals began to die off and became extinct.
How has Christianity became so widespread?
More than likely, God had a lot to do with it.
What was the result progressive attitudes toward non whites?
segregation became widespread and the norm
What was the result of Progressive attitutdes toward non-whites?
Segregation became widespread and the norm
Why do you think corruption became so widespread during the Gilded Age?
Corruption was so widespread during the Gilded Age because there was little government regulation, federal and state.
What was the Washington office complex that became a symbol of the widespread corruptions of the Nixon Administration?
The Watergate Complex
