Which organisms came and went during the Mesozoic era?

Q: What major climatic and biological events happened during thePleistocene?

A: The environment throughout the Pleistocene was dynamic, changing dramatically in response to climate…

Q: In what way was the evolution of eukaryotic cells linked to the increase in the oxygen concentration…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: What does an age structure show?

A: Population ecology is the study of the populations in relation to the environment. It includes…

Q: How did the researchers use the DNA of living sponges to make conclusions about events occurring…

A: Answer- Every organism in a particular species have 99 percent same DNA sequence. Even among…

Q: List the major events of the Precambrian supereon and of thePaleozoic, Mesozoic, and Cenozoic eras`

A: Precambrian supereon consists of the period before Cambrian and hence the name pre-Cambrian eon. It…

Q: What is the term for bits of rock and dirt? O A. Mesozoic O B. Half-life O C. Sediment O D.…

A: An MCQ has been asked. Have to name a term for bits of rock and dirt.

Q: What is the correct order of appearance in the fossil record, starting with the earliest: eukaryotic…

A: They consist of eubacteria and archaebacteria. Bacteria are simple prokaryotic organisms which are…

Q: How is fossil age measured

A: Relative dating and absolute dating are the two basic approaches for establishing the age of a…

Q: What is the “Cambrian explosion,” and why is it significant?

A: Cambrian period refers to the initial geological period of the Palaeozoic Era as well as Phanerozoic…

Q: What types of organisms flourished in the Cambrian?

A: Evolution is the process of slow and gradual change over a period of time. There are different…

Q: How do plate tenctonics help scientist describe fossils??

A: The plate tectonics is known as the Earth's solid outer crust, the lithosphere is separated into…

Q: Event How Long Ago? # Organisms Extinet Causes Cretaceous

A: Cretaceous extinction :  Cretaceous extinction took place about 66 millions ago . Organisms which…

Q: In which era of the Geologic Time Scale are we currently living ir O Cenozoic O Mesozoic

A: 2nd answer is cenozoic

Q: How did the Paleozoic era end?

A: Paleozoic era is the earliest era that has occurred in the Phanerozoic eon. It is the largest of all…

Q: How do we know the age of a fossil?

A: The change in the heritable characteristics of the species across many generations is called…

Q: What factors influenced the isotopic composition of oxygen in skeletons of marine organisms during…

A: The factors that influenced the isotopic composition of oxygen in the skeleton of marine organisms…

Q: What does a conical age pyramid with a broad base represents?

A: An age pyramid is a graphical representation  of the number of individuals in various age groups of…

Q: What is the oldest fossils?

A: Ans: Fossils: The remaining of animals, fungi, plants, single cell living organisms or bacteria is…

Q: Define - The Carboniferous period ?

A: The carboniferous or " carbon-bearing "    period  is the part of late paleozoic era , the fifth…

Q: How would the appearance of protocells have represented a key step in the origin of life?

A: Introduction  Origin of life on earth can be traced back to 3.4 billion years ago and as we now know…

Q: What Were the Earliest Organisms Like?

A: Evolution is a gradual process, and according to the theory of evolution, all species are related…

Q: Describe the conditions that scientists think existed on early Earth.

A: Introduction  The origin of life on earth can be traced back to 3.4 billion years ago and as we now…

Q: What interval of time does the Anthropocenerefer to?

A: The major events during the evolution and origin of life on the earth are divided into three eras.

Q: What is a transitional fossil?

A: Fossils are the preserved remains or remains from a once-living organism from a particular…

Q: - What method can scientists use to determine when the fossil above appeared on Earth? SC.7.L.15.1

A: Fossils should be studied in terms of time and occurrence for understanding evolutionary phenomena.…

Q: What caused the Cambrian explosion? Describe current hypotheses.

A: Cambrian explosion denotes the most significant event in the evolution or the history of life on…

Q: Adaptive radiation

A: Evolution evolution is a process by which organisms adapt and grow to serve better in their natural…

Q: Which of these events occurred in the Mesozoic era? First mammals First cyanobacteria First bacteria…

A: Mesozoic era has three periods cretaceous, Jurassic and Triassic periods. It is the age of reptiles.

Q: What was the most significant contribution of early photosynthetic organisms to Earth’s environment?

A: Photosynthesis is preparation of food by the use of light and carbon-dioxide gas.

Q: How did the presence of molecular oxygen in the atmosphere affect early life?

A: Life originated nearly 3.6 billion years ago in the deep ocean.  The first organisms to be evolved…

Q: Which organism is an endosymbiont?

A: The organism is defined as the any individual entity that embodies the properties of life. It is…

Q: Could the First Biological Molecules Have Formed NearVolcanoes on Early Earth?

A: In 1953, Stanley Miller conducted an experiment in the laboratory of Harold Urey to understand the…

Q: What is the change between the paleolithic era and the neolithic era? What is the Neolithic…

A: Hello. Since you have posted multiple questions and not specified which question needs to be solved,…

Q: List the types of rocks that form from rhizarian remains.

A: There are various types of rocks in which the main rocks comprises sedimentary rocks, igneous rocks,…

Q: Why did Shubin and his colleagues choose to look in the Canadian Arctic for transitional fossils?

A: As explained by Neil Shubin answer why he chose the Canadian Arctic for transitional fossils takes…

Q: Why do we need to know the age of a fossil?

A: Fossil is preserved remains of any living things from the history such as bones,shells ,DNA remnants…

Q: What was the “Cambrian explosion” and how might you explain it?

A: Introduction  Cambrian explosion event was occurred nearly 541 million years ago during the Cambrian…

Q: Which event in Earth’s historyeventually lead to the evolution of multicellular lifeforms?

A: The process of evolution of multicellular life from simpler, unicellular microbes was an important…

Q: what geology was occuring aroung the cambrian explosion that may have contributed to this…

A: Cambrian explosion occured around 541 million years ago.Cambrian period started after second great…

Q: Name three types of animals that existed during the mesozoic era

A: More than 180 million years passed through the Mesozoic Era. Many modern plants, invertebrates, and…

Q: The Mesozoic Era is referred to as the: * O Age of Ages Age of Reptiles O Age of Arthropods O Age of…

A: Biodiversity is the which describes the different varieties of organisms or living forms on the…

Q: What analysis is provided by the study of human age pyramids?

A: A population pyramid which is also known as age pyramid is a graphical representation of…

Q: What are the divisions of the geologic time scale?

A: Paleontology is the study of prehistoric life using fossil evidence or ancient sediments. This helps…

Q: What patterns in the fossil record would support that organisms have evolved?

A: Fossils: Fossils are considered to be the remains or the traces of the organism's activity that are…

Q: In what layer does the oldest organism become extinct first?

A: Answer: The study of fossils is called paleontology.

Q: What is the "Cambrian Explosion" and why is it significant?

A: Cambrian period refers to the initial geological period of the Palaeozoic Era as well as Phanerozoic…

Marine Evolution

Marine habitat is less explored, and hence, its biological diversity is far less known. The marine habitats are not constant due to their shifting nature, while the terrestrial habitats are more stable. Marine biology is the science that deals with the study of diverse marine species, their interactions, and behavioral characteristics.