Studying the decay of radioactive isotopes in dead organisms helps scientists to identify fossilized remains. The ratio of C-12 to C-14 in the atmosphere is 1 x 1012. The table shows this ratio inside the body of three organisms. Organism C12/C14 Ratio E 8 x 1012 F 1 x 1012 G 4 x 1012 What can most likely be concluded from the above information?    Only Organism F is alive, and Organism G died before Organism E. Only Organism F is alive, and Organism E died before Organism G. Only Organism E is alive, and Organism G died before Organism F. Only Organism E is alive, and Organism F died before Organism G.

Give me an example of a sudden change and a gradual change can causes extinction to population of organisms.

Which of the following events are possible sources of high levels of iridium in sediments? Write 'yes' or 'no' next to each of the four possibilities. There may be more than one 'yes' response. 4. An asteroid impact Rain Fossilized foraminifera A supernova

Comment on the remark "Evolution seems to be reversible," which refers to industrial melanism.

Place the following events in the order in which they are thought to have occurred in early evolution of life. the ability to produce proteins from genetic material  the ability to use O2 as an electron acceptor for producing cellular energy  the formation of heritable information (RNA)  the ability to use light energy to fix CO2

In Oct 2022, a chilling discovery was made in Vuvatu, a country known for its extensive volcanic landscapes. Scientists found the remains of a large organism that had no resemblance to any current form of life on Earth. The organism also had no resemblance to any fossils ever found, including the very few fossils ever recovered from Vuvatu (fossils are rarely ever found in Vuvatu since volcanic landscapes are generally not conducive of fossilization). The world buzzed with the possibility that this was a crash site for an extraterrestrial body. An extensive study of the uncovered remains was conducted by many research facilities. Their conclusions regarding the organism’s features are listed below: Physical features: The organism has a surprisingly soft and malleable exoskeleton that reflects ambient light, creating mesmerizing patterns. In fact, the remains highly suggest that most of its body parts are soft and blubbery rather than rigid. Habitat: Given its relationship with…

Name of the group of microorganisms that completely changed the evolution of life on Earth. - Why can we say that this group contributed to the delimitation of the limits of life? What is their ecological role? - How did these organisms contribute to the evolution of eukaryotic cells and metabolisms? - How did these organisms contribute to the establishment of life in extraterrestrial (out-of-water) environments?

T/F Viruses evolve are not technically alive. Group of answer choices True False T/F Archaeans are most noted for causing diseases in insect larvae True False T/F There is evidence that small organic molecules form in space and come to earth on asteroids/meteors.

In Oct 2022, a chilling discovery was made in Vuvatu, a country known for its extensive volcanic landscapes. Scientists found the remains of a large organism that had no resemblance to any current form of life on Earth. The organism also had no resemblance to any fossils ever found, including the very few fossils ever recovered from Vuvatu (fossils are rarely ever found in Vuvatu since volcanic landscapes are generally not conducive of fossilization). The world buzzed with the possibility that this was a crash site for an extraterrestrial body. An extensive study of the uncovered remains was conducted by many research facilities. Their conclusions regarding the organism's features are listed below: 1. Physical features: The organism has a surprisingly soft and malleable exoskeleton that reflects ambient light, creating mesmerizing patterns. In fact, the remains highly suggest that most of its body parts are soft and blubbery rather than rigid. 2. Habitat: Given its relationship with…

Which sequence of events accurately describes the history of the planet (from oldest to youngest)?     Eukaryotes appear, Oxygen increases in the atmosphere, Prokaryotes appear,     Oxygen increases in the atmosphere, Eukaryotes appear, Prokaryotes appear      Prokaryotes appear, Oxygen increases in the atmosphere, Eukaryotes appear     Prokaryotes appear, Eukaryotes appear, Oxygen increases in the atmosphere