A student wants to measure the temperature change of water after adding a 10 cm block of iron to container 1 and a 10 cm3 block of lead to container 2. Both blocks were heated to 40°C before being added to the water. The image below shows the experiment immediately after adding the blocks.
Container 1
100 ml water at 25°C
10 cm iron at 40°C
Container 2
100 mL water at 25°C
10 cm lead at 40°C
Why did the temperature increase more for container 1 even though each 10 cm block was heated to 40°C and placed in 100 mL of water at 25°C? A. Different materials can have different densities.
В. Different rates of dissolving. C different materials have different capabilities of transferring heat. D. Different materials can have different rates of sinking.

Select the correct answer. in the image, if the washcloth represents consumed food, which organ of the digestive system correctly represents the action performed by the hands? hands squeezing water from a washcloth a. esophagus b. large intestine c. liver d. mouth

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

Transmission electron microscope are best for viewing a) microorganisms in pond water b) internal organs of a mouse c)internal structures of a cell d) surface features of a specimen