2. The greatest extinction in the fossil record, causing the extinction of about 52% of marine vertebrate families from that time period (as well as high numbers of terrestrial extinctions), is considered to be: A. the Ordovician/Silurian extinction B. the Devonian/Carboniferous extinction C. the Permian/Triassic extinction D. the Triassic/Jurassic extinction E. the Cretaceous/Tertiary extinction

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A: Answer : The Cenozoic Era extended over  time periods in the fossil record is :  a)  the Paleozoic…

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A: Origin of new species in a particular area for a certain period of time is called the speciation.

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A: Darwin observed the Galapagos finches that had a graded series of beak sizes and shapes and…

Q: True or false: Within the fossil record, the oldest fossils are generally found in the upper-most…

A: Fossils are conserved or well maintained structure of dead organisms in the past history . Learning…

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A: Transitional Fossil:          Any fossilized remains of a life form that exhibits traits common to…

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Q: 4. Which species appear to have evolved most recently?

A: The phenomenon of evolution of a population to form distinct species is called speciation. A group…

Q: Which of the following is TRUE about the fossilization proccess: A. a stable enviornment is…

A: The question is asking us to identify the correct statement(s) about the fossilization process.…

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A: Due to the adaptation of different environments, different species shows different adaptations that…

Q: 5. All of the following are ratite birds that have undergone divergent evolution as they adapted to…

A: Flightless birds are birds that have lost their capacity to fly due to evolution. There are about 60…

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A: The phylogenetic tree is defined as the diagram that will represent or depict the evolutionary…

Q: Arguments in favor of the overkill hypothesis of megafauna extinctions are   a. Basically…

A: Evolution is a continuous transition of living forms, beginning with the basic forms of the past and…

Q: . Explain and briefly describe the geological time scale. How does it relate to the science of…

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Q: 5. Convergent evolution _________.   A. has not occurred in vertebrates but is widely acknowledged…

A: Answer. We often find unrelated animals converging on the same form or structure because that form…

Q: Throughout Earth’s history, many species, and perhaps even most of the species that ever existed,…

A: Humans never caused extinctions. Extinction generally caused due to some conditional changes.

Q: If the replacment (out-of-Africa) model is correct, thena. human fossils in China after 100,000…

A: As per the African replacement model, anatomically current people emerged as another species (By 100…

Q: From which biogeographic province do fossils of the closest ancestors of marsupials appear to…

A: Marsupials, however, do things a little bit differently. Young develop inside their mother in a…

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Q: The most severe mass extinction event, linked to the formation of Pangaea and massive volcanic…

A: According to the question, we have to provide the answer to The most severe mass extinction event,…

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Q: 5. If you could only save five marine arthropods from a sudden extinction event, choose five…

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Q: Biologists studying living primates in recent years, such as Geladas and Baboons, have noticed that…

A: *chronospecies a species derived from a  development pattern that is involved with an continuous and…

Q: 19. When a radio-isotope in a fossil with a half-life of 3,000 years has been reduced to 1/8th of…

A: On completion of each half life  the  amount of the substance reduces to half of its initial value.…

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A: Answer- (A) globally-distributed over most available habitats (like the Norway rat). The ways of…

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A: Fossil A remnant or imprint of extinct animals or plant on rocks, deep sea, or snow is known as…

Q: 5. The Mesozoic Era extended over which of the following time periods in the fossil record? A. the…

A: Answer - B. The age of reptiles", from 251 million years ago to 65 million years ago.

Q: 24. Which of the following species would ordinarily be at the highest risk of extinction? A. whales…

A: Extinction is a permanent termination of a particular species from the Earth. Several species are…

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A: Introduction  Extinction refers to the complete disappearance of a species or group of organisms…

Q: Which of the following pieces of evidence prompted researchers to abandon the hypothesis that a…

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Q: 14. What is the name of the group of hominins that lived between 2.4 and 1.4 million years ago?

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Q: Which of the following patterns of evolution is most supported by the fossil record?   a. Descent…

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Q: Based on the figure below, what is the number of turnovers in stage B? D 34 24 16 4 Geological…

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Q: 29. When predator and prey species evolve alongside one another due to their close association, this…

A: Prey and predator species A predator species depends on the other organism for feeding. such species…

Q: Q5: Which taxa is most closely related (has a more recent shared ancestor) to the crocodiles? Q6:…

A: An display of the estimated degrees of evolutionary relationships among a chosen group of taxa…

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A: Anagenesis is the process through which one species transforms into another as a result of…

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: The best studied of the mass extinctions is the Cretaceous extinction. Why do you think it has been…

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Q: 18. Adaptive radiation is a variation of which of the following types of evolution? A. Coevolution…

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A: Yes we are in a extinction that is known as 6th mass extinction it is the worst and fastest…

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A: *NOTE: Kindly repost for other questions Dear Student as per the guidelines we are supposed to…

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