Blood is vital for transporting substances through the body. When a person bleeds, that person is hemorrhaging. Blood loss over 30% can be fatal if not replaced by a blood transfusion. A. A person with type AB- blood could receive type B- blood, type A- blood, type AB- blood, or type O- blood.
B. A person with type O+ blood could receive type O+ blood or type O- blood.
C. A person with type A- blood could receive type A- blood or type O- blood.
D. A person with type B+ blood could receive type B+ blood, type B- blood, type O- blood, or type O+ blood.

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

Autotrophs a.consume their food to get energy b.may use photosynthesis to gain energy c.are also called consumers d.cannot use solar energy

Predict the results of a two base insertion or deletion in a strand of dna that codes for a protien, how does this differ from a three base insertion or deletion?