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Biology

What would happen to your food web if the population of a top consumer doubled?

Explain the meaning of the statement: "Tonicity is only useful as a comparative term."

Which two statements describe harmful effects of a tree dying and falling in a forest? a. The space opened in the forest lets more light shine on plants that need it b. Animals living in the tree's branches lose their shelter and nesting sites c. The dead tree provides a new source of food for decomposers d. Vines growing on the tree die if their stems and roots are damaged

Pancreatic cells incorporate radioactively labeled amino acids into proteins, allowing researchers to track the proteins' intracellular locations. We are particularly interested in tracking an enzyme that pancreatic cells ultimately secrete. Therefore, the most probable pathway for this protein within the cell is: A. ER -> Golgi -> Nucleus B. Golgi -> ER -> Lysosome C. Nucleus -> ER -> Golgi D. ER -> Golgi -> Vesicles that fuse with the plasma membrane E. ER -> Lysosomes -> Vesicles that fuse with the plasma membrane The correct answer is D: ER -> Golgi -> Vesicles that fuse with the plasma membrane.

The strongest muscle contractions are normally achieved by ________. a) increasing the stimulation up to the maximal stimulus b) increasing stimulus above the threshold c) increasing stimulus above the treppe stimulus d) recruiting small and medium muscle fibers

Fill in the Blanks. The diphtheria exotoxin is an a-b toxin that __________. view available hint(s) the diphtheria exotoxin is an a-b toxin that __________. causes host cell lysis is encoded for by genes in the chromosome of corynebacterium diphtheriae cells is found in all corynebacterium diphtheriae cells is found only in corynebacterium diphtheriae cells that have been infected with lysogenic bacteriophage β

What is the narrow region on the earth from which a total eclipse is visible?

True or false? In most cases, chronic diseases do not have a single cause, which makes it more challenging for scientists to identify significant risk factors and establish preventive measures.

A nurse is developing a plan to teach a mother how to reduce her infant's risk of developing otitis media. which direction should the nurse include in the teaching plan?

a force that pulls water, slowing its downward movement is

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