Q: A paleontologist estimates that when a particular rock formed, it contained 12 mg of the radioactive…
A: Earlier, paleontologists were only able to understand biological succession, they weren't aware of…
Q: Why is it hard to create a timeline of events chronicling Earth’s History?
A: There are timeliness but they are often conjectured and who can argue with them with an alternative.…
Q: 1. Which statement is NOT a principle or relative-age dating? sc.7.E.6.3 A Layers of sediment are…
A: Relative dating is the procedure that is performed for finding out the age of a particular object by…
Q: The period of the history of the earth that is referred to as Chemical Evolution was essential for…
A: Chemical evolution explains how life started on Earth. Chemical evolution refers to changes in…
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: Understand the importance of the Miller-Urey experiments that recreated the conditions present in…
A: Stanley Miller and Harold Urey demonstrated in their experiment that UV radiations or electric…
Q: These are one of the most important fossil record of the early life forms here on Earth and formed…
A: Q.These are one of the most important fossil record of the early life forms here on Earth and formed…
Q: The distribution of organisms across Earth is known asa. biogeography.b. uniformitarianism.c.…
A: Answer is a.) Biogeography.
Q: . Explain and briefly describe the geological time scale. How does it relate to the science of…
A: Introduction :- The Earth's rock record serves as the foundation for the geologic time scale, also…
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: 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: Explain the consequences of plate tectonics for lifeon Earth.
A: The continents form a part of the floating plates of the crust of the earth. Movements of the mantle…
Q: What argument convinced most scientists in the 1800s that Earth was more than 6,000 years old?…
A: Fossils are the remains of the organisms that were present on the earth in the past.
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: Name the study of possible life outside the earth.
A: Our universe is made up of millions of galaxies within which contain within itself billions of stars…
Q: State in what ways Stanley miller simulated the condition of :-i) Primitive atmosphere on earth.ii)…
A: Stanley miller performed an experiment to prove that organic molecules were produced by the…
Q: List several significant events in the history of life on earth that are associated with the K-T…
A: KT boundary is the boundary between the age of reptiles that occurred in the Mezoxoic era and age of…
Q: Your history teacher asked you to show something that can give idea of the information about the…
A: Sedimentary rocks are formed by the process of sedimentation of particles, biomass, and minerals…
Q: Explain The Core Theme: Evolution accountsfor the unity and diversity of life
A: Biology is the scientific study of life and its related biological aspects. The interactions among…
Q: The fossil record shows that in just the last 600 million years, there have been five instances of…
A: Explanation: The most studied mass extinction, which marked the boundary between the Cretaceous and…
Q: What argument convinced most scientists in the 1800s that Earth was more than 6,000 years old? O The…
A: Introduction All life on earth began from the universal last common ancestor which lived 3 to 4…
Q: Geological time covers huge spans, up to billions of years. Yet humans rarely live for more than 100…
A: Geological time scale is important to understand the history of earth that how several natural…
Q: WRITE ABOUT A THEME: Interactions Write a shortessay (about 100–150 words) evaluating whether…
A: Evolution refers to the process in which a gradual change occurs in the genetic material of the…
Q: What evidence did Lord Kelvin and Charles Darwin each use to support their conclusions about the age…
A: Kelvin evidence:- Based on the time required for an initially uniform and hot thermal structure to…
Q: Which of the following is not thought to have been a source of organic molecules on early Earth?* O…
A: Cosmic dust
Q: n Stanley Miller’s experiment to recreate the early Earth conditions that gave rise to life,…
A: The Stanley miller's experiment is also called miller-Urey experiment. It was a chemical experiment…
Q: Which of the following is the most probable order of appearance of molecules the evolution of life…
A: According to guidelines we have to answer the first question only. so please kindly post the…
Q: 2) ; Multiple Choice: We believe the beginnings of life on earth took place in the: a) air b) land…
A: Evolution deals with the study of origin of earth, origin of life on earth and relationships between…
Q: Describe the conditions or circumstances when organic material (i.e. living things) would not be…
A: Organisms can be preserved or can be fossilized . It depends upon the nature of the organisms and…
Q: Match the forms of life below with the earliest (approximate) time that it existed. Note: the earth…
A:
Q: Arrange in chronological order the evidence that life transitioned from aquatic environments to…
A: Introduction In contrast to land-based terrestrial ecosystems, an aquatic ecosystem is one that…
Q: Which staterment from the choices below, BEST describes scientists current understanding of the…
A: Methane, ammonia, water vapour, and the noble gas neon were abundant in Earth's initial atmosphere,…
Q: Imagine an ancient sunlit estuary rich in clay deposits. Countless aggregations of organic molecules…
A: Several hypotheses have been made in relation to life's origins on Earth. In 1936, Alexander Oparin…
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: Fill in the blanks. The parentheses after the blank represent the choices for each blank.…
A: Gondwana was the ancient supercontinent which existed millions of years ago. At that time, primitive…
Q: D Question 4 Which mass extinction led to the disappearance of the dinosaurs? O Triassic O…
A: The recurrent rise and disintegration of ice sheets and glaciers driven by the Milankovitch cycles,…
Q: List in order of appearance the four stages of the origin of life and explain what was necessary to…
A: Evolution is the gradual changes occur in in living organisms over a long duration it is a very slow…
Q: Stanley Miller showed experimentally that inorganic gases could form simple organic molecules…
A: The Miller-Urey experiment provides an evidence for the hypothesis supporting chemical origin for…
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: Suppose a scientist finds a rock with an interesting fossil. Curious to know the age of the fossil,…
A: As per the data given, the Rb-Sr isochron equation is - ( 87Srt /86Srt ) = ( 87Sr0 / 86Sr0 ) + (…
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: Radiometric dating is a technique used to determine the age of rocks. Geologists have used this…
A: Radiometric dating is a technique used to determine the age of rocks. There is a constant rate of…
Q: Based upon our current understanding of the abiotic origin of life, which of the following molecules…
A: Abiogenesis is the generation of life from nonliving matter. It is now more precisely known as…
Q: Sequence the major events in the evolution of life
A: There is no specific definition for life but the cell is considered the fundamental or basic unit of…
Q: Choose the answer from the given concept below. A. Extraterrestial Origin B. Divine Creation C.…
A: The meaning of 'Origin of life' is the emergence of heritable and evolvable self-reproduction. It is…
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 the conditions on Earth 4.5 billion years ago
A: Evolution is the process of slow gradual change over a period of time. The process of evolution…
Q: What type of plates that float on top of the mantle do scientist believe that the Earth's crust is…
A: The earth is made up of different layers: 1)The Inner core- It is the inner and hottest layer of the…
describe 3 characteristics that make earth suitable for life
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- Which of the following was likely MOST important for life to begin existing on Earth? A. sunlight B. DNA C. a source of oxygen D. a source of energyWhich of the following is true? A) Life originated around volcanic vents deep in the oceans. B) Life originated in lakes. C) Life originated on meteors.Name the study of possible life outside the earth.
- Describe how the Earth's origin structure gives it the ability to support lifeEvidence that Mars __________ suggests that it may have supported or still supports life. a. has an ozone layer b. has water c. is about the same size as Earth d. all of the aboveWhich of the following would be the most likely place that life would first form on Earth?Choose one: A. mountaintops B. within the atmosphere C. anywhere D. on the surface at the lowest elevations E. deep under water
- How would you describe earth of millions year agoHow did life likely originate in the planet? Choose ONLY ONE. - Biogeochemical theory - Special Creation - Spontaneous Generation - Panspermiawhere on the earth did life mostly likely first emerge, where all the ingredients and conditions for life existed? a. volcanic islands b. deep oceanic vents c. tidal pools d. tropical rainforest
- What is the characteristics of all life on earth ? What is the knowledge gain by scientist that explains the nature known as ?How did life most likely originate in the planet? Choose below. - Biogeochemical theory - Special Creation - Spontaneous Generation - PanspermiaLife is found almost everywhere on Earth, but can you explain why it is notdistributed evenly around the planet.