Biology, 11.10.2019 01:00 gsmgojgoss9651
The cambrian explosion resulted in the evolution of more than 17,000 species of an animal known as the trilobite. the shear number of trilobite fossils found in modern times suggests that trilobites were very abundant, perhaps the rulers of the seas. today, no living descendants of this group exist. what happened?
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Biology, 21.06.2019 15:30
In attempt to solve the working problems created by the industrial revolution, the united states and many countries in europe considered and/or adopted
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Biology, 21.06.2019 23:20
During an investigation of an xss attack, the investigator comes across the term "[a-za-z0-9\%]+" in analyzed evidence details. what is the expression used for?
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Biology, 22.06.2019 08:30
Answer now! good pts and a brainliest potatoes are what im like a potatoe irdk have a good day
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Biology, 22.06.2019 13:00
Astudent from one of the research labs is having trouble preparing a slide for examination and photographing. the bacterial slide that he has brought to you was prepared using a commercially purchased stain. he has asked for your in determining what he is doing wrong so that he can change the lab protocols and continue on with his project. after examining the slide under oil immersion, you determine that no bacteria are present even though the student is able to show you the culture he used to make that slide that has visible growth in the liquid medium. which of the following statements does not explain the fact that there are no bacteria present on the student’s slide? by not allowing a glass slide to completely air dry before heat fixation, the flame will cause the surrounding water to boil and this will damage the bacterial cell. overheating during the fixation step boiled the water within the bacterial cells and resulted in the cells bursting. insufficient heating of the slide did not drive out the thin layer of water and this resulted in minimal bonding between the bacteria and the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide. rinsing with alcohol during the washing step stripped the bacteria off the glass slide.
Answers: 1
The cambrian explosion resulted in the evolution of more than 17,000 species of an animal known as t...
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