How does the fossil record corroborate phylogenetic hypotheses?

events that occur early in the fossil record are represented by branching events nearer to the root of a phylogenetic tree.
events that occur early in the fossil record are represented by branching events nearer to the tips of a phylogenetic tree.
fossil record events are too old to be represented on phylogenetic trees, which reconstruct the more recent past.
events in the fossil record occur randomly throughout a phylogenetic tree, so the two are not related to one another.
the timing of evolutionary events in the fossil record is not consistent with the branching order of a phylogenetic tree.

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

Which of these statements is false? a. others may notice a problem with a relationship before the people involved. b. the first sign of a problem with a relationship is a feeling of anger. c. damaged relationships can be repaired. d. even good relationships can be damaged.

Which type of stimulus do mechanoreceptors detect? sound pain heat light