What is prehistory and protohistory?
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: 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: hat do scientists think the primitive Earth w
A: Researchers believe that early earth's atmosphere consisted of water vapor , carbon dioxide , carbon…
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: How did Paleozoic life diversify during the Ordovician, Silurian,Devonian, Carboniferous, and…
A: Evolution is the change in the characteristics of a species over several generations and relies on…
Q: How have humans influenced extinctions?
A: Extinction caused by human activities is called Holocene extinction. There is a correlation between…
Q: How old was the world thought to be when Darwin began his voyage?
A: The five-year voyage of Charles Darwin on H.M.S. Beagle in the early 1830s is legendary. It gained…
Q: Ancient mammals became abundant during this period: a) Jurassic b) Triassic c) Carboniferous d)…
A: Mammals can be defined as the group of vertebrate animals which constitutes the class of Mammalia…
Q: How does biogeography explain the theory of evolution?
A: Introduction :- The study of the geographic distribution of plants, animals, and other forms of life…
Q: From the early 1700s to the modern day, how did various lines of evidence clarify and improve…
A: Cetaceans are the true aquatic mammals that have evolved mechanisms to survive in the water.…
Q: outline major stages in life evolution, and describe how the landsurface changed as life evolved.
A: The period from 4600 mya to 2500 mya is called Archean eon.
Q: Define Anthropocene Period
A: The geological timescale is the system of classification of the geological strata in time. It is…
Q: According to "Our Earliest Ancestors", what time period is being discussed in this video? A.The…
A: The Eocene, Miocene, Pleistocene, and Paleocene are all epochs in the geologic time scale. They are…
Q: Describe six types of fossils and how they form. What presentenvironmental conditions might preserve…
A: Fossils: Fossils are considered to be the parts or the remains of the organisms that are preserved…
Q: How do fossils support evolution, speciation and extinction?
A: Fossils are defined as the imprints kr impressions of the dead remains of the plants and animals on…
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: Has the number of species on Earth increased steadily since the origin of life?
A: Ans: Species: The species are those which are capable of interbreeding and producing the offspring.…
Q: According to the land bridge theory, why may people have crossed into North America from Siberia?
A: Landbridge theory, states that early animals and people traveled from Siberia to Alaska across a…
Q: Do plants and animals have a common multicellular ancestor?
A: Yes plants and animals have common ancestor.plant cells are characterised by cell wall and…
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: 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: why is evidence of evolution important today?
A: Evolution is the gradual change in genotype and phenotype by which organisms or populations get…
Q: Why did the first animal radiation occur so late in the evolutionary day?
A: Introduction: Evolution can be defined as the process that has given rise to different kinds of…
Q: How does evolution work to create the diversity of life on Earth
A: The gradual development or change in organisms with accordance to the changing environment for their…
Q: What is the most important mechanism that produces adaptive evolution?
A: The course of evolution through which organisms lose the characteristics or traits or some organs…
Q: Organism A lived from 410 to 60 million years ago. Organism B lived from 200 to 100 million years…
A: In case of human or animal remains from the past 50,000 years, researchers focus at levels of carbon…
Q: Are humans still evolving? Say YES or NO and then SUPPORT answer using knowledge of evolutionary…
A: Evolution is the change in the characteristics of a species over several generations and relies on…
Q: How have changes in earths systems contributed to the evolution of life?
A: Earth and its environment are persistently modified. Plate tectonics move the landmasses, raise…
Q: According to "The Life and Death of a Neanderthal (Shanidar 1)”, what is the time period being…
A: The correct answer is D. PleistoceneExplanation: Neanderthals:During the Pleistocene era, a unique…
Q: What is a Homology? A) When an anatomic feature is shared among organisms and their descendants B)…
A: explanation-similarity of the structure, physiology or development of different species of organisms…
Q: How did the colonists adapt to their natural environments
A: Introduction: The 'natural environment' refers to the non-human-made surrounds and conditions under…
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: What is the relationship among eons,epochs and periodsbof geologic time scale? Explain
A: The geologic time scale splits the earth's evolution into periods depending on the types of life…
Q: What's the largest unit of geologic time, lasting hundreds of millions of years? A. Era B. Eon C.…
A: INTRODUCTION Largest unit of geolic time lasting hunderds of millions of year are Eons.
Q: Using the figure below, which group of organisms passes the one-snip test? ABC
A: A phylogenetic tree is pictorial representation of evolutionary relationship between organisms.
Q: endosymbiosis provide evidence for evolution?
A: The biological alteration of a species over a period of time is referred to as evolution.…
Q: Which eon has more events occurring in it? During which eon did life evolve? What is the difference…
A: The geologic time scale uses events that have happened over the course of Earth's history, or around…
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…
What is prehistory and protohistory?
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