Scientists think that terrestrial life probably originated in Earth's oceans because Choose one: A.  energy was available there. B.  all of the chemical pieces were there. C.  All of the possible answers are correct. D.  the earliest evidence for life on Earth comes in ocean-dwelling forms.

Q: Describe in your own words how the Earth’s layers were formed

A: Earth is the planet on which we live.

Q: Which of the following would be the most likely place that life would first form on Earth?

A: Which of the following would be the most likely place that life would first form on Earth?  Answer.…

Q: Place these events in the history of life on Earth in the order that they occurred. a. accumulation…

A: Evolution is the process of slow gradual change over a period of time.  The process of evolution…

Q: The term “Cambrian explosion” refers to (a) an increase in biodiversity. (b) a mass extinction. (c)…

A: Answer: Introduction: The Cambrian explosion or Cambrian radiation was an incident about 541 million…

Q: How do biologists define life, and what were the origins of life?

A: This question is about and origin of life.

Q: Which of the following events occurred earliest in Earth’s history? a. Membrane-enclosed structures…

A: Recognizable human beings appeared on a geological scale at most 2 million years ago, a vanishingly…

Q: describe 3 characteristics that make e

A: The third planet from the sun is the earth. And 29.2% surface of the earth is land and the remaining…

Q: Which of the following did Stanley miller place in the experimental system to show that organic…

A: Stanley Miller and Harold Urey's experiments reported evidence of chemical evolution or Chemogeny.…

Q: Describe how scientists have tested the hypothesis that simpleorganic molecules could have formed on…

A: There are fossils that were discovered from Western Australia 3.5 million years ago (mya). This…

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: Life originated from the earth’s inorganic atmosphere in the post, but this no longer happens today.…

A: Theories from various scientists propose that in Earth's prebiotic history, simple organic matter…

Q: Energy, the absence of molecular oxygen, chemical building blocks, and time were the requirements…

A: The change in the traits and characteristics of the population with time is termed evolution. The…

Q: The greatest mass extinction episode in the history of life occurred at what boundary? (a)…

A: Mass Extinction events can be defined as those events in which half or more than half of all…

Q: Scientist have determined that the early Earth had no free oxygen anywhere. Briefly explain what…

A: Scientists suggest that the early atmosphere of the earth was very hot and had no ozone or free…

Q: The theory of evolution is supported by a large body of evidence. What is the first occurrence of…

A: The theory of evolution The theory proposes the idea that all species present are related and have…

Q: What evidence would you look for on Enceladus, Europa or Mars that would tell you that life may have…

A: Europa is the smallest of four Galilean moons orbiting Jupiter. Enceladus is the sixth-largest moon…

Q: .Who among these evolutionary thinkers stated that the living forms come from the seas? a. Erasmus…

A: Introduction Evolution:- It is simply the biological change of a species over a span of time or the…

Q: Indicate which of the following statements concerning biostratigraphy is true. a) fossils can only…

A: C. fossil can only be dated in ancient oceanic sediment layers is correct.

Q: Which of the following is true? A) Life originated around volcanic vents deep in the oceans. B)…

A: Abiogenesis is the theory that explains that life originated by the spontaneous process in hot…

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: 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: A. What is the PROTEROZOIC LIFE? B. Discuss the Great Oxygenation Event. C. Discuss the CAMBRIAN…

A: Geological time scale is a evolutionary event  which determines how the life appear , its…

Q: The fossil record provides evidence for:    A.When organisms lived on earth   B. How some species…

A: The fossil record is the story of life's development as preserved in sedimentary rock by fossils,…

Q: Which of the following do not provide evidence that a meteor strike was a partial cause of the…

A: About 65.5 million  years ago KT extinction event occurred which wiped off the dinosaurs from the…

Q: An organism dies,and its body leaves an impression in mud. Over time, the mud hardens into rock, and…

A: The cells are the primary unit of life. Based on the number of cells an organism may be unicellular…

Q: where on the earth did life mostly likely first emerge, where all the ingredients and conditions for…

A: There is an evidence that life began as early as 4.5 billion years ago , and had been reported in a…

Q: Could the First Biological Molecules Have Formed NearVolcanoes on Early Earth?

A: In 1953, Stanley Miller conducted an experiment in the laboratory of Harold Urey to understand the…

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: Origin of Life List in a series of four or five steps the most likely scenario for the evolution of…

A: Evolution is a continuous process and we are still evolving. Evolution is nothing but adapting to…

Q: Arrange these events in order of occurrence, with 1 being the earliest and 6 the most recent. First…

A: From the time earth came into existence, till now, our planet has gone through several changes.…

Q: Which of the following evidence was used by Wegener to support his hypothesis that the conti- nents…

A: Alfred Wegener is a German scientist who proposed a hypothesis called Continental drift in the early…

Q: In which type of rock are you most likely to find a fossil? a. basalt, a dark, fine-grained volcanic…

A:

Q: We live in the Cenozoic era, and scientists know more about this era and the epochs it’s divided…

A: The term 'Cenozoic' refers to a period of time ranging from 66 million years ago to the present day.…

Q: If the evolution of life was placed on  a 24 hour clock, when did humans arrive? a.  At the 30…

A: The geologic time scale of Earth is divided into four large segments called Eons: Hadean, Archean,…

Q: Scientists are examining the possible role of a large asteroid in the cretaceous mass extinction…

A: Introduction :  Small, airless rocky bodies revolving around the sun between the orbits of Mars and…

Q: A. How old is the Earth? B. How long did the longest eon (so far) last? C. How many years ago did…

A: Epoch is longer than era. Eon is the longest period of geological time.

Q: List three locations where the building blocks of Earth’s first lifemay have formed

A: The biological event through which life has originated from non-living matter, like simple organic…

Q: A. What do scientists think the primitive Earth was like? Give 3 evidences.   B. How could life…

A: Our current atmosphere of twenty one percent oxygen would make the emergence of DNA & other…

Q: Which of the following shows the correct sequence of periods in the Mesozoic era: a) Triassic,…

A: Evolution is a change in species and organisms that are inheritable and can be transferred from…

Q: Approximately when did life first appear on land A. 500 million years ago B. 2 billion years ago…

A: Question - Approximately when did life first appear on land A. 500 million years ago B. 2 billion…

Q: Describe in general terms how the appearance of molecular oxygen in Earth’s atmosphere about 3…

A: The earth was created almost 4.5 billion years ago. The evidence suggests that the planet was devoid…

Q: One type of fish fossil is found only in a rock layer near the bottom of a canyon, while a different…

A: Stratigraphy is the study of the rock layering and reveals a wealth of information about what Earth…

Q: The Miller-Urey experiment was a landmark step in our understanding of the origins of life. But what…

A: Introduction Stanley Miller and Harold Urey devised a test to put Oparin and Haldane's theories to…