What did malthus predict about the human population?
a. it would decrease steadily over time...
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Biology, 21.06.2019 13:30, pupucitomarron
What is the broadest level of classification of life
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Biology, 21.06.2019 20:00, skylex
You have been asked to lead a demonstration for the undergraduate microbiology lab course about the uses of negative staining when studying bacteria. a "negative" stain does not stain the bacterial cell itself but stains the space between cells. under magnification, the acidic (negativelycharged) nature of the stain will be repelled by the negatively charged bacterial cell wall and willleave the cell colorless in a stained background. negative stains are used primarily to reveal the presence of negatively charged bacterial capsules; therefore, they are also called capsule stains. encapsulated cells appear to have a halo surrounding them. the negative stain procedure does not require heat fixation, which limits any chances of alteration in bacterial cell shape and size. the bacterial suspension is added to a drop of stain, such as nigrosin or eosin, and drawn across the glass slide using a coverslip. nigrosin staining-not safranin staining-of klebsiella pneumoniae will allow for the visualization of the cell shape and the determination of the presence of a capsule. true/false
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Biology, 21.06.2019 23:30, gabbystar517
What are some possible short and long term medical concerns for crew members on longer space exploration trips
Answers: 3
Biology, 21.06.2019 23:40, elisameza
Which statement describes an endocrine function rather than an exocrine function? a. salivary glands release saliva into the mouth. b. sweat glands release sweat onto the skin c. the pineal gland releases melatonin into the blood. d. esophageal glands release mucus into the esophagus.
Answers: 1
Mathematics, 02.02.2021 06:30
Mathematics, 02.02.2021 06:30
Chemistry, 02.02.2021 06:30
Mathematics, 02.02.2021 06:30
Mathematics, 02.02.2021 06:30