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A fossil is found to have a 14C level of 77.0% compared to living organisms. How...
A fossil is found to have a 14^C level of 89.0% compared to living organisms. How...
A fossil is found to have a 14^C level of 89.0% compared to living organisms. How old is the fossil?
please help A fossil is found to have a Clevel of 72.0% compared to living organisms....
please help
A fossil is found to have a Clevel of 72.0% compared to living organisms. How old is the fossil? age: years How many neutrons are needed to initiate the fission reaction? 230 + ? 1.Sr + 4 Xe + 3n number of neutrons: Resources 18 decays by positron emission, Balance the nuclear equation by giving the mass number, atomic number, and element symbol for the missing species. 18F + Balance this nuclear reaction by supplying the missing nucleus....
Part D A fossil was analyzed and determined to have a carbon-14 level that is 30...
Part D A fossil was analyzed and determined to have a carbon-14 level that is 30 % that of living organisms. The half-life of C-14 is 5730 years. How old is the fossil? Express your answer with the appropriate units. View Available Hint(s) μΑ ? t = Value Units
A fossil was analyzed and determined to have a carbon-14 level that is 80 % that...
A fossil was analyzed and determined to have a carbon-14 level that is 80 % that of living organisms. The half-life of C-14 is 5730 years. How old is the fossil?
Exocytosis is one of the processes living organisms use to move molecules. Choose all the example...
help...:(
Exocytosis is one of the processes living organisms use to move molecules. Choose all the examples of exocytosis. □ □ A nerve cell releases peptides used as messengers into the extracellular space. urine leaves a mouse's bladder and soaks into the soil. Proteins used as hormones are moved out of the cell in which they were manufactured. Oxygen moves out of a red blood cell through the cell membrane. A single-celled eukaryotic organism excretes digestive waste into the surrounding...
Some fossil bones containing 1/32 of their original amount of carbon-14 are found. How many half-lives...
Some fossil bones containing 1/32 of their original amount of carbon-14 are found. How many half-lives have passed? How old are the bones? (HINT: The half-life of carbon-14 is 5,730 years. If 1/8 of the original amount of carbon-14 was present, 1/8 = 1/23 or 1/(2x2x2), therefore 3 half-lives would have passed and therefore, the bones would be 5,730 years x 3 = 17,190 years old)
Catalase is a common enzyme found in nearly all living organisms exposed to oxygen. It is...
Catalase is a common enzyme found in nearly all living organisms exposed to oxygen. It is a very important enzyme in protecting the cell from oxidative damage by reactive oxygen species. With this information answer the following: a. the substrate and products of catalase? Explain? b. The type of reaction performed by catalase? Explain? c. Factors that could increase or decrease the activity of an enzyme-like catalase? Explain? d. in what type of cells is catalase found? How catalase is...
Sapling Learning macmilan learning Match the anatomical structures and functional descriptions with the correct level of motor control. Segmental level Projection level Precommand level conveys i...
Sapling Learning macmilan learning Match the anatomical structures and functional descriptions with the correct level of motor control. Segmental level Projection level Precommand level conveys information cerebellum spinal cord stimulates specific brain stem nuclei to motor neurons muscle groups monitors muscle tone Hint Previous Give Up & View Solution e Check Answer D Next 4
Sapling Learning macmilan learning Match the anatomical structures and functional descriptions with the correct level of motor control. Segmental level Projection level Precommand level conveys...
B) An unknown radioactive substance has a half-life of 3.20 hours. If 47.3 g of the...
B) An unknown radioactive substance has a half-life of 3.20 hours. If 47.3 g of the substance is currently present, what mass A0 was present 8.00 hours ago? Express your answer with the appropriate units. C) Americium-241 is used in some smoke detectors. It is an alpha emitter with a half-life of 432 years. How long will it take in years for 30.0 % of an Am-241 sample to decay? Express your answer with the appropriate units. D) A fossil...
As the final part of her study, Linda wants to know how the extinction of pterosaurs...
As the final part of her study, Linda wants to know how the extinction of pterosaurs impacted the diversification of living bird groups. She knows that the fossil record is incomplete, and that it will be difficult to study this question using fossils alone. She therefore teams up with a geneticist to reconstruct the evolution of modern birds: Feet modified for perching 9 Owls 107 A -Parrots 19 -Penguins 4 Chickens TL 6 Doves Enlarged breastbone Grebes 19E B Flamingos...
A fossil is found to have a 14^C level of 89.0% compared to living organisms. How old is the fossil?
please help
A fossil is found to have a Clevel of 72.0% compared to living organisms. How old is the fossil? age: years How many neutrons are needed to initiate the fission reaction? 230 + ? 1.Sr + 4 Xe + 3n number of neutrons: Resources 18 decays by positron emission, Balance the nuclear equation by giving the mass number, atomic number, and element symbol for the missing species. 18F + Balance this nuclear reaction by supplying the missing nucleus....
Part D A fossil was analyzed and determined to have a carbon-14 level that is 30 % that of living organisms. The half-life of C-14 is 5730 years. How old is the fossil? Express your answer with the appropriate units. View Available Hint(s) μΑ ? t = Value Units
help...:(
Exocytosis is one of the processes living organisms use to move molecules. Choose all the examples of exocytosis. □ □ A nerve cell releases peptides used as messengers into the extracellular space. urine leaves a mouse's bladder and soaks into the soil. Proteins used as hormones are moved out of the cell in which they were manufactured. Oxygen moves out of a red blood cell through the cell membrane. A single-celled eukaryotic organism excretes digestive waste into the surrounding...
Sapling Learning macmilan learning Match the anatomical structures and functional descriptions with the correct level of motor control. Segmental level Projection level Precommand level conveys information cerebellum spinal cord stimulates specific brain stem nuclei to motor neurons muscle groups monitors muscle tone Hint Previous Give Up & View Solution e Check Answer D Next 4
Sapling Learning macmilan learning Match the anatomical structures and functional descriptions with the correct level of motor control. Segmental level Projection level Precommand level conveys...
As the final part of her study, Linda wants to know how the extinction of pterosaurs impacted the diversification of living bird groups. She knows that the fossil record is incomplete, and that it will be difficult to study this question using fossils alone. She therefore teams up with a geneticist to reconstruct the evolution of modern birds: Feet modified for perching 9 Owls 107 A -Parrots 19 -Penguins 4 Chickens TL 6 Doves Enlarged breastbone Grebes 19E B Flamingos...
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