An organism dies,and its body leaves an impression in mud. Over time, the mud hardens into rock, and the impression becomes a fossil. Which kind of fossil was formed? A) cast B) mold C) original material D) trace fossil

Q: Why is it so important to learn about the Piltdown Hoax? Do you think it demonstrates that…

A: Piltdown Hoax was created when Dawson and Smith Woodward faked the discovery of the fossilized…

Q: What assumption is made during the relative dating of fossils?

A: INTRODUCTION Archaeologists, geologists, and other scientists make use of this principle when dating…

Q: What is a hominin?

A: Hominins are the members of a tribe from the subfamily Homininae. Hominin Kingdom: Animalia Phylum:…

Q: Which of the following is the most likely organism to fossilize and be found in the fossil record?…

A: Step 1 Fossils are remains, tracks, impressions, or traces of organisms that existed in the past.…

Q: what is a mold? A. the imprints from an organism can be a shell or the skin of an animal B. Molds…

A: Fossils are the preserved remains of the organisms that die. The palentologists deal with two basic…

Q: Examine the following phylogenetic tree illustrated in Figure shown in the picture. In general,…

A: Evolution is the process by which new species develop from an existing species by accumulating…

Q: What is adaptive radiation? Explain with an example.

A: Adaptive radiation was discovered by Charles Darwin. Adaptive radiation is the result of…

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: -If 30 percent of the carbon-14 atoms remain in a sample, how long ago did the organism die? -Is…

A: The unstable isotope of the carbon is Carbon 14 (C-14). The half-life of a C-14 is 5730 years old.…

Q: Why will the fossil record always be incomplete?

A: FOSSIL : Fossil record give the evidence for any particular species that lived in the past period of…

Q: According to the film, First Steps, the first stone tools were associated with which species? A:…

A: Homo habilis is an extinct hominid of the genus Homo that is known from sub-Saharan fossil remains…

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 can a scientist use dna taken from three different organisms to construct a cladogram

A: It is a diagram used to represent a hypothetical relationship between groups of animals called a…

Q: What is the difference between a cladogram and a phylogenetic tree? Given a cladogram for a group of…

A: Taxonomy is also called as the arrangement law, which is a branch of science that is used to…

Q: How did the prints become trace fossils?

A: Step 1 Fossils are remains, tracks, impressions, or traces of organisms that existed in the past.…

Q: Which of the following is an accurate point that supports the idea that the earliest protocells…

A: DNA and RNA are the genetic material present in the cell.

Q: Cambrian explosion occurred?

A:

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: Radiometric dating uses the decay of              to             to determine how old fossils of…

A: Radiometric dating determines the age of historical objects in years via measuring the occurrence of…

Q: From the early 1700s to the modern day, how did various lines of evidence clarify and improve…

A: Evolution is change in the heritable attributes of organic populaces over progressive ages. These…

Q: What is the difference between an ancestral character and a shared derived character?

A: Systematics is used to construct a cladogram, which is an evolutionary tree, which depicts the…

Q: What is a transitional fossil?

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

Q: How could changes in a single gene or DNA region ultimately leadto the origin of a new group of…

A: Mutations can be defined as the occurrence of changes in the genetic sequence which leads to the…

Q: What is adaptive radiation?

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

Q: construction project required digging hundreds of feet into the ground, which exposed many discrete…

A: Theory of evolution: Evolution is a biological process involving the change and adaptation of all…

Q: Which molecule -DNA or RNA- do scientist believe was found in the first life form on Earth? Why do…

A: DNA is the double helix structure. RNA is the signal helix structure.

Q: Reading abstracts. Read the research abstracts and answer the following questions. (a) What is the…

A: We are giving the answers as per the information provided to us. "Research" is carried out to assess…

Q: Historically, how has the origin of life on earth been explained?

A: Introduction The mythological explanation for the phenomenon of life on Earth is the most frequently…

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: . Humans began to settle down and domesticate plants and animals approximately

A: Humans began to settle down and domesticate plants and animals approximately 10,000 years ago.

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: Describe the “chemical fingerprint of the archaean fossil first discovered in the Messel oil shale…

A: Introduction: Archaea are single-celled microorganisms with structures like bacteria. They are…

Q: Where does the material to construct these massive organisms come from?

A: An organism consist of an organized structure that reacts to stimulus, adapts, growth, reproduces,…

Q: Assuming the Denisovans, Neanderthals, and humans were able to interbreed, what does this tell you…

A: Denisovans are group of extinct humans. They first identified based upon DNA sequences from…

Q: Where was the first zoological museum founded?

A: Biological museums are generally set up in educational institute such as schools and colleges.…

Q: Examine the following phylogenetic tree illustrated in Figure shown in the first picture. In…

A: A phylogenetic tree, also known as a phylogeny, is a diagram that depicts the lines of evolutionary…

Q: How do we infer evolutionary history from a group of organisms?

A: A fossil and extant species' evolutionary history is described in evolutionary history.…

Q: How do we know how old a fossil is? A) We compare it to current species and see how much has…

A: There are two ways of determining the age of a fossil - Relative dating and absolute dating.

Q: Why are archaebacteria called living fossils?

A: Introduction: "Archae" stands for "ancient", archaebacteria are thought to evolve from the very…

Q: scientist has a fossil that was found in a layer of rock close to Earth’s surface. He believes that…

A: Fossils are the material remains (bones, teeth, shells) or traces (physical or chemical) of ancient…

Q: In biological (paleontological) correlation, the zone created by comparing the start of the age…

A: Paleontology:  Paleontology, sometimes known as palaeontology, is the scientific study of life that…

Q: Why are the fossils and artifacts important in the study of biological and cultural evolution?

A: Fossils are valuable sources of knowledge about life on Earth in the past. Scientists may often…

Q: What will happen if a taxonomic classification system does not exist?

A: Taxonomy is the science of naming, characterizing, and classifying species, which encompasses all of…

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.