The Chengjiang Fauna and the Burgess Shale Fauna are A early and middle Cambrian in age, respectively B unusually well preserved fossil assemblages C have representatives of all the modern animal phyla D include examples of early Chordates E all of the above The Laramide Orogeny... (Select all that apply) A began in the Cretaceous and continued into the Tertiary (Paleogene) B was the final phase of mountain building of the Cordilleran Mountain system C began in the Triassic and continued into the Jurassic

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

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

Q: 30. When organisms develop similar features in environments that are geographically far apart but…

A: Ans: Convergent evolution

Q: Which of the following models is supported by the observation that few transitional links are found…

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

Q: The geological context of fossil hominid materials in south Africa is [ Select] Time [ Select] less…

A: These are remains of a prehistoric plant or animal embedded in rock and preserved in petrified form.

Q: Bivalvia: Gastropoda: Cephalopoda: Nautiloidea: Ammonoidea: Coleoidea: Belemnitida: Mollusca: MYA…

A: Geological time scale is one type of calendar or tool by which we can understand the event of earth…

Q: The Cenozoic Era As you do the lab, fill in the last two columns for the Paleocene through the…

A: Introduction Evolution is the process by which different species are evolved over time in response…

Q: One of the biggest puzzles for modern evolutionary biologists is the rate of adaptive radiation that…

A: INTRODUCTION Adaptive radiation The period where there is increased biodiversity and speciation is…

Q: Which of the following techniques examines the decay of carbo an object? O A. Radiometric dating O…

A: For the determination of the age of living or nonliving materials the scientist usually determined…

Q: Relative dating of sedimentary rocks allows scientists to assign specific dates to fossils.

A: It is difficult to date sedimentary rocks since they range to billions of years ago. So, the…

Q: Plant photosynthesis transformed a very large amount of atmosphericcarbon dioxide into…

A: Answer is c.)  Carboniferous.

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: Using tables 2.1 and 2.2 as references, fill out the following table. The first item is given as an…

A: Geological time scale Geological time scale is a representation of Earth's history.

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: The fossil record does not give us a complete picture of the history oflife becausea. not all past…

A: A fossil is any preserved remains from a past geological period, impression, or residue of any…

Q: Silurian Rhudering nStage Ordovician Period Hirnantian Stage Rawtheya n Stage A. ascensus N.…

A: The data suggest that extinctions were brought on by climate change. This is believed to have had a…

Q: ''Cambrian Explosion'' What contributed to this explosion of life? What were Earth conditions like…

A: Cambrian explosion was the rapid and unparalleled rise of the organisms at the beginning of the…

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

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

Q: The____ tool industry characterizes the Middle Paleolithic / Middle Stone Age and spans the time…

A: Introduction Evolution is the process of gradual, heritable change in the characteristic of the…

Q: Which statements are false? Select all that apply. Select one or more: a. The fossil record is…

A: Answer.  Fossils are the preserved remains or traces of organisms from the distant past. The fossil…

Q: One benefit of the fossil record isa. that hard parts of bodies are more likely to fossilize.b. that…

A: Fossils are remains of organisms from the past that have been preserved in the different layers of…

Q: Match the terms with the most suitable description. ____ lineage                         a. measured…

A: Evolution is the accumulation of genetic variations.

Q: Why is the study of biogeography an important tool in explaining how species have evolved? * It…

A: Evolution is the phenomenon of the development of inheritable changes in an organism over a period…

Q: ds. N 1 of the following is not correct about the amphibians? A. Amphibians are ectothermic,…

A: Answers :  the tetrapod legs of amphibian is associated with shoulder and the hip girdle for walking…

Q: Fossils found in deeper layers of the Earth generally have ____ 14C than fossils found in the upper…

A: Fossils found in the deeper layer of the earth generally have which amount of 14C than fossils found…

Q: Martian meteorites found in Antarctica were determined to possibly contain life. Scientists looked…

A: Known as ALH 84001, the Martian rock whose remains were present in meteorites contained structures…

Q: On the geologic time scale, life originated in the_____ . a. Archean c. Phanerozoic b. Proterozoic…

A: The geologic time scale is a chronological dating system that classifies geological strata into…

Q: . One of the explanations for the diversity seen in the fossils corresponding to the Cambrian…

A: The adaptations that arose within the Cambrian were mainly for cover and predation. If one animal…

Q: In 1983, a team of scientists discovered a fossilized bone of a giant bird when excavating land in…

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

Q: List and name of one of the more notable\ well-known plant and one animal that went extinct in the…

A: The Cretaceous- paleogene extinction basically  occurred about 66 million years ago. This was a…

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: Question 5: Give a brief description of the evolutionary changes that occurred throughout geologic…

A: A phylogenetic tree is a diagram that delineates the connections between a few species or groups of…

Q: Fossils are remains of ancient organisms found in the rocks are categorized depending on their age.…

A: The remnants and evidence of ancient species are known as fossils. The preserved remnants or traces…

Q: In the past 500 million years there have been ________ mass extinction events.   A. two     B.…

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

Q: Explain what significant events happened during the Five major extinction events between the late…

A: An extinction event (also recognized as a mass extinction) is a large-scale and sudden loss of…

Q: The oldest Homo ergaster remains from East and West Lake Turkana are [ Select ] years old. (this is…

A: Homo eragaster translates to 'the working man' refers to the advanced tools used by this species as…

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

A: Species turnover is defined as the number of species in a specific geological age which pass over to…

Q: Which of the following is associated with the Cenozoic era? O a. Warmer planet O b. Different…

A: The answer is given below:    The first two are associated with the Cenozoic era.

Q: Relative-Age Dating Absolute-Age Dating Younger 440 mya 480 mya 520 mya 545 mya Older 2. The dates…

A: Ans: C: Igneous rock layers

Q: During the ____ epoch, there were fewer ____ and more ____, a reversal in the relative…

A: Geological Time depicts the geological history of Events on Earth that occurred in a specific time…

Q: Old and New World monkey ancestry is definitely separate by 35 millions years ago. However, once the…

A: Anthropoids, a diverse group of primates that includes monkeys and apes, make their intriguing debut…

Q: Plant life first appeared on land during which of the following periods? a. Cambrian period b.…

A: The palaeozoic era was divided into six periods and these were as follows: Cambrian Ordovician…

Q: Most animal lineages evolved during the ____ period. a. ​Devonian b. ​Cambrian c. ​Silurian d.…

A: The geological time scale is divided into several periods to make the study easier. A period refers…

Q: Which of the following is characteristic of the end of the Paleozoic Era? a There was a mass…

A: As experts believe, the Earth was formed as a result of the Big Bang Explosion. The geological time…

Q: What major event caused the adaptive radiation of mammals? A. the mass extinction of the dinosaurs…

A: Introduction Evolution is defined as the change in the genetic composition of a population during…

Q: _is the study of the process of what happens to biological remains after an organism dies. This is…

A: Stratigraphy is the study of arrangement of rocks in layers or strata. Primatology is the study of…

Q: Some epileptic conditions are due to neurons firing too often. This could be due to a lowering of…

A: Epilepsy mostly starts in childhood later in life but anyone can have epilepsy at any time in…

Paleontology

A branch of science concerning the scientific study of life from ancient times is known as paleontology. The scientists working on paleontology are known as paleontologists. Paleontologists collect the fossils of organisms from ancient times to classify them. The paleontologists also study the environment from ancient times to study the interactions between different organisms.