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Regarding survival of organisms, it was hypothesized that A. the tallest organisms survive. B. the plainest organisms survive. C. the slowest organisms survive. D. the organisms best fitted to their environment survive.
Weegy: D. the organisms best fitted to their environment survive. User: Growing up, Darwin saw that farm animals with preferred traits were chosen for breeding. Those chosen animals usually produced offspring with the preferred traits. This best illustrates the process of A. natural selection. B. evolution. C. artificial selection. D. genetic engineering. Weegy: A. natural selection. User: When Charles Darwin arrived in South America what observation did he make regarding rabbits? A. There were the same rabbits in South America as there were in Europe. B. There were rabbits in Europe but none in South America. C. The rabbits in South America were different from the rabbits in Europe. D. There were rabbits in South America but none in Europe. Weegy: C. The rabbits in South America were different from the rabbits in Europe. User: This diagram shows the homologous structures in humans, horses, dolphins and bats. What do these homologous structures suggest about the ancestry of these four organisms? A. The four organisms are the same species. B. The fours organisms are the same size. C. The four organisms share a common ancestry. D. The four organisms have similar patterns of locomotion. Weegy: Sir/Madam, The answer is letter "D. The four organisms have similar patterns of locomotion." User: Which of the following is one observation that Charles Darwin made regarding variation? A. Organisms are born with variation. B. Organisms are not born with variation. C. Variation is not observable in nature today. D. Variation is acquired as organisms go through daily life. Weegy: The answer is A. Organisms are born with variation. User: Relative dating determines the relative age of fossils according to A. their radioactive decay. B. their size. C. the layer of rock they're found in. D. the time of day when they were found. Weegy: C. the layer of rock they're found in User: One way that fossils form by the dead organism's soft tissue ... (More)
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Asked 11/28/2012 11:22:38 PM
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Archaea are different from Bacteria in that Archaea A. have structures and molecules that are more similar to eukaryotes than bacteria. B. have structures that are more similar to bacterial structures. C. have molecules that are different from eukaryotic molecules. D. none of the above.
Weegy: C. have structures and molecules that are more similar to eukaryotes than bacteria. User: What are bacterial chromosomes made up of? A. single circular piece of DNA B. linear pieces of DNA C. DNA in paired chromosomes D. DNA or RNA in various forms Weegy: A. single circular piece of DNA User: Which characteristics do scientists use to identify specific prokaryotes? A. size B. shape C. movement D. energy source User: Research has shown people will have elevated levels of a certain protein when they have a bacterial infection. In comparison, when people have a viral infection the same protein appears in trace amounts. Once a blood test is done the level of protein can be determined in about an hour. Why would it be beneficial to know if a person with a respiratory infection has elevated levels of this protein in his or her blood? A. Physical therapy can be recommended. B. A change in diet can be recommended. C. A decision can be made regarding the need for x-rays. D. A decision can be made about whether or not to prescribe antibiotics. Weegy: Research has shown people will have elevated levels of a certain protein when they have a bacterial infection. In comparison, when people have a viral infection the same protein appears in trace amounts. [ Once a blood test is done the level of protein can be determined in about an hour. Why would it be beneficial to know if a person with a respiratory infection has elevated levels of this protein in his or her blood? Answer:D. A decision can be made about whether or not to prescribe antibiotics.. ] (More)
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Asked 11/29/2012 9:39:13 PM
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How do psuedopods work? A. The cytoplasm extension discharges digestive juices toward it's food. B. The cytoplasm extensions surround the food, and excretes digestive juices to digest it's food. C. The cytoplasm extension moves over the food and covers it to engulf it. D. The cytoplasm extension lures it's food to the food vacuole to digest it.
Weegy: C. The cytoplasm extension moves over the food and covers it to engulf it. User: How do ciliates move? A. using psuedopods B. using flagella C. using cilia D. using extensions of it's body Weegy: C. using cilia User: How would you describe animal-like-protists? A. two-celled B. no-celled C. one-celled Weegy: Most Protista are one-celled organisms. User: What is binary fission? A. asexual reproduction by combing of psuedopods B. asexual reproduction by splitting into two parts C. asexual reproduction by exchanging genetic material D. asexual reproduction by moving Weegy: B. asexual reproduction by splitting into two parts. User: What can the Euglena detect with it's eye spot? A. smell B. sound C. light D. texture Weegy: The Euglena detects C, light, with its eye spot, which it needs for photosynthesis. User: Who discovered animal-like-protists? A. Newton B. Einstein C. Leeuwenhoek D. Faraday Weegy: C. Leeuwenhoek User: Why are protists like animals? A. they move and catch their food B. they move and make their own food C. they move and are mammals Weegy: A) User: How do flagellates move? A. pseudopods B. cilia C. flagella D. feet Weegy: Flagellates use their flagella for transportation. User: What do all of the above organisms have in common? A. They all can move and make their own food. B. They all can move and use and eye spot to locate food. C. They all can move and can be heterotrophic. D. They can move and they use psuedopods to capture their food. Weegy: C. They all can move and can be heterotrophic. User: In the above picture what do the hair like structures called cilia allow the paramecium to do? A. hold on to it's food B. send out sonar to locate food C. hold on to other organisms D. move Weegy: The cilia allow the paramecium to D. move. (More)
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Asked 11/29/2012 10:27:04 PM
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