A. What is the PROTEROZOIC LIFE? B. Discuss the Great Oxygenation Event. C. Discuss the CAMBRIAN EXPLOSION OF LIFE.

Q: When did photosynthetic organisms first appeared? O From the very beginning of life, they are some…

A: Photosynthetic creatures, also called photoautotrophs, are photosynthesis-capable organisms. Higher…

Q: Can you answer all the parts of this question about this picture  A: What order do these organisms…

A: Mollusca are mostly found in marine and freshwater,  their body has a cavity , the body is covered…

Q: The oxygen revolution permanently changed Earth’s environment and dramatically impacted the…

A: We are answering first 3 questions. For rest of questions pls repost.     Oxygen evolution is a…

Q: How did discoveries in the deep sea influence scientists' ideas about whether life could be found…

A: A discussion of life elsewhere therefore naturally begins with a review of some key aspects of the…

Q: Which bits of evidence would convince you that life originated as early as 3.2 bya? a. You look at…

A: The change in the heritable characteristics of the species across many generations is called…

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: 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: Plant photosynthesis transformed a very large amount of atmosphericcarbon dioxide into…

A: Answer is c.)  Carboniferous.

Q: Investigate and describe how prokaryotic cells photosynthesize without having chloroplasts.

A: This answer is for the first part of the question. In order to get the answer to the second part of…

Q: Direct evidence of life on early Earth comes from fossils of microorganisms that lived 3.5 billion…

A: The earliest life structures we are aware of were minuscule organic entities (microorganisms) that…

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: During the first 600 million years of Earth history, enzymes, ATP , and other molecules could have…

A: The primitive earth was in the form of a red hot, solidified cloud containing free atoms. The…

Q: The Precambrian (before Cambrian) time period includes many eons. This period of time includes the…

A: Answer. The Precambrian (before Cambrian) time period includes many eons. This period includes the…

Q: Before the emergence of life of what gases was the earth's primitive atmosphere constituted?

A: the primitive atmosphere was reducing in nature it had little or no oxygen  it was rich in water…

Q: Imagine you were to find a fossilized animal bone containing one-eighth the amount of carbon-14…

A: Given information: Carbon-14 present in the fossil is 1/8th of the earth's atmosphere today. The…

Q: How the evolution of oxygen was involved in the initial evolution of terrestrial life

A: Photolysis of water vapors and carbon dioxide produce hydroxyl and oxygen, individually, thus, they…

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: Compare and contrast the physical and chemical conditionson Earth at the time life first arose with…

A: Earth is a planet which supports numerous life system and abiotic factors. Earth formed 4.5 billion…

Q: In what order did events occur that led to life on Earth? (1) appearance of aerobic organisms, (2)…

A: C is possible right answer

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: 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: What model for WHERE life began (not HOW life began) seems to be highly unlikely, and which model is…

A: Introduction :- Evolution is the phenomenon which leads to the origin of first life on our planet…

Q: The biggest living in earth?

A: Introduction Biodiversity refers to the availability of different types of species of different taxa…

Q: What did Wegener call the giant land million years ago? Pangaea O Big Ol' Continent Gigantia…

A: The supercontinent began to break apart about 200 million years ago, during the Early Jurassic Epoch…

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: Why do scientists think that the increased availability of oxygen in the atmosphere was an O…

A: Answer :- The increased availability of oxygen in the atmosphere was an important contributing…

Q: mini threshold of life's evolution,

A: A threshold is a kind of abrupt elevation in the complication that produces new, resulting in…

Q: The animals body plans that emerged from the Cambrian Explosion were multi-cellular and…

A: Originally, geologists identified the start of the Cambrian Period as the first appearance of…

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: Most people tend to think that if the sun ever stopped emittinglight, all animal life on Earth would…

A: An animal varieties or species is regularly characterized as the biggest gathering of organisms…

Q: What is the "Cambrian Explosion" and why is it significant?

A: The Cambrian period is the first period of the Paleozoic era and started around 542 mya. This period…

Q: 29) The Cretaceous extinction. which was the most recent mass extinction, occurred about 65.5…

A: Natural selection, or evolution, is the process by which a species' features evolve over a number of…

Q: History of life List five of the most important or most significant events in the history of life on…

A: The change in the heritable characteristics of the species across many generations is called…

Q: Match the forms of life below with the earliest (approximate) time that it existed. Note: the earth…

A:

Q: Given that the early atmosphere did not contain oxygen gas, using only the information covered in…

A: Photosynthesis is a process that occurs in plants and also other organisms such as fungi, bacteria,…

Q: Scientists think that terrestrial life probably originated in Earth's oceans because Choose one:…

A: Question - Scientists think that terrestrial life probably originated in Earth's oceans because…

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: The oxygen revolution changed Earth’s environmentdramatically. Which of the following took advantage…

A: The earth is approximately 4.54 billion years ago and the conditions at that time were not meant for…

Q: Here is the question: What was the likely source of the raw material incorporated into the first…

A:

Q: QUESTION 1 The first life on earth arose about ; the first eukaryotes appeared about O 3.5 million…

A: Life originated on the Earth millions of years ago, and since then innumerable varieties of living…

Q: Most of the ATP created during aerobic cellular respiration occurs along the cristae of the…

A: The aerobic cellular respiration involves oxidation of glucose to release energy in the form of ATP.…

Q: Answer the question briefly and explain it(The question is all about History of Life on Earth).…

A: The astronomical studies have revealed that Earth was formed as a planet around 4.5 billion years…

Q: Single-celled Eukaryotes were preceded by what environmental development on Earth? O a. The forming…

A: Eukaryotes are the organisms having well defined nucleus with cellular organelles such as…

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: Chronologically arrange the evolutionary events, with 1being the earliest and 6 the most recent.___…

A: Chronological event describe the timing of event as it occurred in the event of time period.…

Microbes

Microbes are microscopic living organisms that can only be detected with the help of specialized laboratory equipment called a microscope. These living organisms are so small that they are not visible to the naked eye.