After you eat a sugary donut and drink a soda, you blood glucose levels rise above a normal range. Your pancreas releases insulin, which acts to reduce your blood sugar levels. This is an example of a . A. negative feedback returning your body to homeostasis B. negative feedback moving your body away from homeostasis C. positive feedback returning your body to homeostasis D. positive feedback moving your body away from homeostasis

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

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

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas