John is completing an internship in biology at the clearwater marine aquarium. while interning there, he monitors an outdoor phytoplankton exhibit to observe how populations of phytoplankton change when exposed to light. it is observed that each year the phytoplankton population within the exhibit increased by 3,000 organisms when it was exposed to high amounts of sunlight. a new high rise apartment complex that overlooks the beach is being built. the new apartment complex will stand between the marine aquarium and the sun. the phytoplankton that were receiving 8-12 hours of sunlight each day will now have between 2-5 hours of sunlight. which of the following is most likely to occur as a result of the new apartment complex?

a. the population will decline over time
b. the population will decrease there need for food
c. the population will migrate to another body of water.
d. the population will choose to evolve new adaptations

If a fungus a plant take up water and nutrients, that would be an example of which type of relationship? a. commensalism b. symbiotic mutualism c. predation d. parasitism

Which of the following are the functions of the skeletal system? blood cell production in soft marrow tissues and mineral reserves largest organ of the body for defense and support vitamin d production and pumping blood through vessels voluntary movement and contractile movement

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