At the end of which geological time period did the Starfish become extinct?

Q: what percentage of sea turtles were around during the jurassic period?

A: Introduction : Geological time scale gives a picture of the events which has taken place in the…

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: Why did giant dragonflies occur during the Carboniferous, but not now?

A: Fossils show that giant dragonflies and huge cockroaches were common during the Carboniferous…

Q: Which organisms came and went during the Mesozoic era?

A: MESOZOIC ERA:- It is the era when the conifers, reptiles, dinosaurs were present in plenty of…

Q: What was more important for the invasion of the land by vertebrates during the Paleozoic: becoming…

A: Vertebrates are those animals that are characterized by the presence of well distinguished backbone…

Q: what does the Cambrian “explosion” refer

A: The early phase of the Paleozoic era that started 541 million years ago and lasted up to 485.4…

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: Did the Neanderthals and Denisovans mate with each other before their lineages died out?

A: The modern human species known as Homo sapiens evolved about 315,000 years ago in the African…

Q: Dinosaurs that lived with tyrannosaur rex what were their? Like any duck bills, hardosaur,…

A: Tyrannosaurus Rex or T. Rex are carnivorous dinosaur species that were found to have been lived in…

Q: What problems were associated with colonizing land during the evolution of vertebrates?

A: Life on Earth first developed in quite a while over 3.5 billion years prior, and even today most of…

Q: What are age pyramids?

A: An ecosystem is a large community of living organisms in a specific area in which the biotic and…

Q: Which fossil layer is the youngest (name the geological period)?

A: The Cenozoic fossil layer is the youngest among the three layer.

Q: Neanderthals and Denisovans split approximately 530,000 years ago. 430,000 years ago. 400,00 years…

A: Answer is 3rd option

Q: What era did Australopithecus afarensis evolve?

A: It is required to identify the era in which Australopithecus afarensis evolve.

Q: Which class of tetrapod animals famously experienced an adaptive radiation into previously unused…

A: The oldest near-complete tetrapod fossils, Acanthostega and Ichthyostega, date from the second half…

Q: When North America and South America joined due to continental drift, what may have caused the North…

A: Continental drift is a hypothesis according to which continents on Earth have moved over geologic…

Q: During what geologic period did life on Earth begin?

A: Evolution is the process of gradual changes occurring in the species over a period of time, when the…

Q: What caused the extinction of the dinosaurs?

A: Dinosaurs represent the giant reptiles that evolved on earth 245 million years ago. They come under…

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

A: 2nd answer is cenozoic

Q: which modern humans had already spread out through much of Asia?

A: It is believed that the most dominant and intelligent species on earth are humans. They are…

Q: Mammal numbers, diversity, and size increased dramatically at the end of the Cretaceous because

A: At the end of Cretaceous period mass extinction of dinosaurs takes place most probably due to…

Q: id the transition of vertebrates from water to land happen quickly? Explain

A: The ecological eras are studied concerning evolutionary time. The time taken for the evolution shows…

Q: Compare and contrast the difference between a prehistoric organism and modern-day organisms. What…

A: Answer

Q: Which era is furthest in the past? O A. Cenozoic O B. Mesozoic O C. Paleozoic O D. Precambrian

A: According to the timeline of the evolutionary history of life, all present-day organisms have been…

Q: HOW MANY YEARS AGO DID THE DINOSAURS BECOME EXTINCT?

A: A timeline based on the rock record of the earth is called a geologic time scale (GTS). It is a…

Q: What term did Lamarck use to explain how new species emerged

A: Jean-Baptiste Lamrack was a French naturalist, who believed if the body parts were not being used,…

Q: Cenozoic Era

A: The Cenozoic era began about 66 million years ago and continues into the present, is the third era…

Q: Which factor most likely caused animals and plants in India todiffer greatly from species in nearby…

A: Among the given options, option (d) is the most appropriate.Upon the analysis of the rock…

Q: Sponges A Cnidarians Ancestral colonial protist Flatworms Molluscs B Annelids Nematodes E Arthropods…

A: Tissue is a collection of cells with similar structures that work collectively as a unit.

Q: What dinosaurs did Acrocanthosaurus lived with in its time in North America like what herbivores or…

A: The Acrocanthosaurus was a flesh eating theropod that lived all through the Early Cretaceous period…

Q: The ends of many eras and periods in the geologic time scale are characterized by?

A: Introduction: Paleontology is the study of the earth's history of lifeforms, which is based on…

Q: Equater Permian - 225 million years ago Triassic - 200 million years ago Jurassic - 135 million…

A: Introduction Twenty million years ago the Indian and Asian continental plates clashed and pushed up…

Q: What are three things a fossil can tell you about an animal?

A: Introduction A fossil is a remnant of a non-living plant or animal that has been preserved or…

Q: For about how many years of geological time have the dinosours existed on earth?? Did dinosours…

A: Geological time scale is a calender represented in form of chart which determines the past history…

Q: Which fossil layer is the oldest (name the geological period)?

A: When geologists study 3 rock layers (and their fossils), there is a good chance that the upper layer…

Q: During what era did pangs begin to break up

A: During what era did pangs begin to break up? Answer. B. Triassic

Q: ldest in a given strata and why?

A: Fossil is any preserved remains, impression, or trace of any once-living thing from a past…

Q: How do geologist define many of the boundaries between sections of geologic time

A: Eons are classified into periods, which are smaller time spans. The Phanerozoic is divided into…

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: Which of the following periods is the earliest during which animals may have appeared? a. Ordovician…

A: Extinction aids the evolution of life by making way for new species. The number of species going…

Q: During what era did the dinosaurs become extinct.

A: In evolution, geological time scale is used to identify the evolution of different animals. It uses…

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.