Describe the roles that montmorillonite clay and vesicles may haveplayed in the origin of life.

Q: A scientist discovers something new about the composition of the mantle. What type of rock (group)…

A: The mantle is the part of the earth between its crust and its core.

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 these did Stanley Miller place in his experimental systemto show that organic molecules…

A: Answer- S.L. Miller experiment concluded the thoery of chemical evolution. He used all the inorganic…

Q: underground into hardened rock. melted rock is READING Diagrans called magma. What causes a…

A: Rocks forms the important part of the earth. The cycle of rock formation is evident as it helps in…

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: Which statement accurately describes the geologic The diagram shows cross-cutting relationships…

A: Cross-cutting relationships are when a geologic feature like igneous intrusion breaks other…

Q: Researchers looking for fossils of the earliest life-forms face many hurdles. Explain why so few…

A: Fossils are the preserved remnants of ancient creatures or evidence of their remains. Fossils are…

Q: Whose discovery made the dating of ancient materials possible?

A: Radiocarbon dating works by comparing the three different isotopes of carbon. Isotopes of a…

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: 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: How is the layer of iridium used to tell the relative age of different rock strata and fossils?

A: Relative age is that the age of a rock layer compared to other layers. It is often determined by…

Q: Radiometric decay of carbon-14 would be used in dating sedimentary rock. a trace fossil. an insect…

A: Radiometric decay is a method dating substances of possible majority of organic content. Principle:…

Q: Using the principles of relative dating, put the rock layers, faults, and igneous intrusions in a…

A: Relative dating is the science of interpreting the relative order of events that occurred in the…

Q: During what geologic period did life on Earth begin?

A: Evolution is the process of gradual changes occurring in the species over a period of time, when the…

Q: Volcanic ash can be used to date fossil finds because each time it is expelled by an eruption it has…

A: The answer is True

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: How is origin of life attributed to LIGHT and WATER? Give a detailed explanation.

A: The origin of life is still a mystery and not proved. There are many theories that are suggested by…

Q: M 1 2 3 4 10,000 bp 3,000 bp 1,000 bp 250 bp

A: On the lane 4 , When the DNA appears as a messy , continuous band at the bottom rather than a…

Q: Explain how researchers determine the age of ancient materials

A: the study of fossils is known as paleontology. it gives us an idea of the ancient form of life on…

Q: With regard to the origin of life, why are biologistsinterested in the prebiotic synthesis of…

A: Introduction The Oparin-Haldane model suggested that under the highly reducing atmosphere of…

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: 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: 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: 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: 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: How were biomolecules likely to have formed on the early Earth?

A: The fundamental biochemical similarities that were observed in living organisms have developed…

Q: What was the Earth like million of years ago?

A: Millions of years ago, there is no life on the Earth. The temperature of the Earth was scorching,…

Q: “Life has profoundly changed the Earth.” Explain whether or notthese experimental results support…

A: The earth was formed about 4,570 million years ago and over the passage of time, different…

Q: what element rise that caused the diversification event in evolution of earth

A: Introduction : The rise in oxygen, which is termed the Great Oxygenation Event is an important event…

Q: an abundance of ______________ in earth's early atmosphere would have interfered with assembly  of…

A: Organic molecules are molecules found in all the living organisms. These molecules are formed by a…

Q: Which scientists investigated the origins of organic molecules on the primordial Earth?

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

Q: Which of the following steps has not yet been accomplished byscientists studying the origin of…

A: The earth is formed before 4.6 billion years ago from the sun with continuous bombardment of huge…

Q: How do metamorphic rocks form

A: The process of change in form i.e. from a type to another type occurs leads to the formation of…

Q: Radioisotopes are useful in dating fossils and rocks because

A: Fossils  They are remains of animals which are preserved in ice or in deep underground or inside…

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: How would you describe earth of millions year ago

A: It is believed that our planet Earth is about 4.54 billion years old.  About 3.5 billion years ago…

Q: Can organic molecules form under conditionsestimated to simulate those on the early Earth?

A: Organic molecules are those composed of carbon atoms in the ring to which other atoms like hydrogen,…

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: Which of the following is not a fossil?a. Dried-out animal bones in a layer of desert sandb. A patch…

A:

Q: What evidence is there for the hypothesis that life originated on Earth by the creation and…

A: The origin of life on the earth is both an interesting and a difficult question to answer. We have a…

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: Describe the kinds of evidence about the history of life that canbe found in sedimentary rock…

A: Different types of living one's lives on the earth.After they died their deposits are accumulated on…

Q: Briefly describe the distinguishing organisms and major biological events of the Ediacaran period…

A: Molecular systematics assists biologists in interpreting the fossil record in order to determine the…

Q: Name the metamorphic rock that will form from clay that becomes a sedimentary rock before pressure…

A: Shales that are subject to heat and pressure of metamorphism alter into a hard, fissile, metamorphic…

Q: How do we know when oceans were first present on Earth?Why is the presence of oceans significant to…

A: The water body, which consists of hydrosphere of different planets, is called oceans. The 71%…

Human Evolution

Human evolution is the process of evolution of humans from early man to anatomically modern humans. The process of evolution in humans leads to the gradual development of traits like bipedalism. Humans are the highly social animals that make them the most advanced animal on Earth.  Human evolution is an outcome of interaction among the following processes: