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The explosion of life with a diverse array of invertebrates and plant phyla occurred during the Cambrian Period, which lasted from approximately 541 to 485 million years ago. This period is characterized by the "Cambrian Explosion," a significant event marked by a rapid increase in the diversity and complexity of life forms, particularly marine organisms. Many of the major groups of animals, including various invertebrate phyla, first appeared during this time.
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What are the types of life in water?
Types of life in water include fish, plants, marine mammals, invertebrates, and amphibians.
What does the term Cambrian Explosion mean?
The sudden appearance of most of the major animal phyla within the fossils early in the Cambrian period. This caused a sudden diversification of life.
What was the significance of the Cambrian explosion to the evolution of life on Earth?
The Cambrian explosion was a period of rapid diversification of life forms around 541 million years ago. It marked the appearance of most major animal phyla, resulting in the development of complex multicellular organisms. This event set the stage for the subsequent evolution and diversification of life on Earth.
Are vertebrates or invertebrates more common?
Invertebrates are more common an vertebrates. An estimated 98% of the world's animal life is made up of invertebrates.
Which era did the most animal phyla evolve?
The Cambrian era saw the rapid evolution and diversification of many animal phyla, known as the Cambrian Explosion. This era, approximately 541 to 485 million years ago, was a pivotal time in the evolution of life on Earth, leading to the emergence of a wide variety of body plans and organisms.
What was the first invertebrate?
Trilobites. They are an extinct form of marine life. They lived on the sandy ocean floors and in coral reefs.
What lived in the age of Paleozoic?
The most noteworthy feature of Paleozoic life is the sudden appearance of nearly all of the invertebrates animal phyla in great abundance at the beginning of the Cambrian. A few primitive fish like invertebrates, and then vertebrates , appeared in the Cambrian and Ordovician, scorpions in the Silurian period, land invertebrates and amphibians in the Devonian, land reptiles in the Carboniferous, and marine reptiles in the Permian. All reptiles increased in number and in variety by the late Permian. The plant life of the Paleozoic era reached its climax in the Carboniferous, and was then much diminished in the Permian.
Why do you have to protect invertebrates?
If there is no invertebrates there will be no life on earth, for example pollinators such as bees and butterflies are important for plants to complete their life cycle.
What era is know as the age of invertebrates?
The age of invertebrates is primarily known as the Paleozoic Era, particularly during the Cambrian period, which began around 541 million years ago. This era saw a significant explosion of marine life, with invertebrates such as trilobites, mollusks, and echinoderms becoming dominant. The fossil record from this time showcases a diverse array of invertebrate species that played crucial roles in early ecosystems.
What was the beginning of the Phanerozoic that was marked by what occurrence?
The Phanerozoic Eon began approximately 541 million years ago with the Cambrian Explosion, a significant event marked by a rapid diversification of life. During this period, most major animal phyla appeared, leading to the establishment of complex ecosystems. The Cambrian Explosion set the stage for the evolution of a wide variety of organisms and the development of intricate ecological relationships.
What are the similarites of vertebrates and invertebrates?
they are life is one
What phylum was dominant during the Cambrian Era about 540 million years ago?
During the Cambrian Era, the dominant phylum was Arthropoda, which includes ancestors of modern insects, crustaceans, and arachnids. This period saw a rapid diversification of life forms in what is known as the Cambrian Explosion, leading to the emergence of many major animal phyla. Other significant phyla during this time included Mollusca and Annelida. The Cambrian period marked a crucial evolutionary step, setting the foundation for complex life on Earth.
