Scientific research shows that our global climate is changing. The global sea level is rising and ocean temperatures are increasing. Which of the following best predicts an outcome of this global climate change in a coastal ecosystem? a
The change in temperature will cause organisms that are sensitive to cold to migrate to the area.

b
The milder temperature will encourage a growth in the diversity of sea life.

c
The loss of habitat will lead to endangering or extinction of species living there.

d
The rising sea level will provide water during drought to species living there.

How can you keep track of variables in a science experiment?

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

Variety of living organisms; includes genetic, species, and ecological types.