Biology, 22.07.2019 21:30 adriana145
How is relative-age dating used to determine the ages of fossils? -by observing the formation of sedimentary rocks -by using radioactive isotopes -by estimating the number of fossils in a particular region -by the formation of igneous rocks -by identifying the way the fossils were formed
Answers: 1
Biology, 21.06.2019 15:00
Asap! how does the distance between two objects affect the force of gravity? how is the moon dependent on the sun?
Answers: 1
Biology, 22.06.2019 03:40
Imagine you are introducing the lac operan and the trp operon to students who have never learned about it before. complete the table to compare the similarities and differences between the two operons
Answers: 3
Biology, 22.06.2019 11:20
How did alexander fleming’s research solve a societal problem? he developed ways to treat inherited diseases. he advocated for regular hand washing to kill germs. he discovered a new type of medicine that could treat infections. he discovered the cause of mad cow disease, an emerging disease.
Answers: 1
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
How is relative-age dating used to determine the ages of fossils? -by observing the formation of se...
History, 07.12.2021 05:50
English, 07.12.2021 05:50
Advanced Placement (AP), 07.12.2021 05:50
Physics, 07.12.2021 05:50
Mathematics, 07.12.2021 05:50
History, 07.12.2021 05:50
Social Studies, 07.12.2021 05:50
Mathematics, 07.12.2021 05:50
Mathematics, 07.12.2021 05:50
Mathematics, 07.12.2021 05:50
Mathematics, 07.12.2021 05:50