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There are some exceptional free living organisms from the tree of life that lack rRNA
true or false
Step by step
Solved in 2 steps
- Simple systems (of this type) of RNA , enzymes, and coenzymes have been created in the laboratory. Which probable stage of physical and chemical evolution of life is that.The theory endosymbiosis is important in understanding how mitochondria and eukaryotic cells may have evolved.what structure is central to the concept of endosymbiosisMutations are rare and prokaryotes reproduce asexually, yet theirpopulations can have high genetic diversity. Explain how this can occur
- a written explanation of the endosymbiotic theory as evidence for existence of eukaryotic organismsTrue or false: The "Miller Urey" experiment that found heating and cooling gases such as H20 and CH4 were able to produce small organic molecules. This proved that life originated on Earth through natural mechanisms.13.3 A highly sensitive instrument (which has not yet been invented) detects that one of the carbon atoms exhaled in Darwin's last breath when he died now resides in his blood where it is part of a hemoglobin molecule. Hint how this carbon atom could get from Darwin to you and mention some of the molecules they might have had on that route.
- Eukaryotes are sometimes termed nature’s master builders. Why is this a more apt description for members of the Eukaryotic branch tree of life than Prokaryotic branches life?Which of the following is not true concerning the mitochondria and chloroplasts and is not evidence in support of the Endosymbiotic Theory? Both divide independently of the eukaryotic cell they are within Both contain their own DNA in a single, circular chromosome Both can survive independently when removed from a eukaryotic cell Both are about the same size as a bacteriaThe endosymbiont theory states that mitochondria andchloroplasts evolved from symbiotic relationshipsestablished between bacteria-like cells and theprecursors of eukaryotic cells that engulfed them on what basis
- Approximately how long ago did homo sapen (humans) first appear on Earth 2,000 years ago 5-7 million years ago 65 million years ago 150,000 - 200,000 years ago Hominins developed their unique larger brains before acquiring the ability to move on two feet. True False the production of atmospheric oxygen in Earth's environment started with photosynthesis by prokaryotes photosynthesis by multicellular eukaryotes photosynthesis by single celled algae photosynthesis by land plants Homologous structures among animal provide evidence for evolution in that theses structure are all produced by the same gene different in different animals, but are modifications of the same basic structure similar in function, but of different basic structure all different structures within the same speciesthe same as the genus of an animal that steals chloroplasts from algae. It can keep the chloroplasts alive for many months, thanks to genes that were originally part of the algae genome. What kind of animal is this? A. Luna both caterpillars, Insecta, Arthropod B. Marine Flatworm, platyhelminthes C. Sea slug, mollusk gastropod D. Bivalve, Mollusk 18The most pivotal event in the history of life on Earth, allowing for the emergence of eukaryotic cells, was the _____________.
