The cell's plasma membrane mediates which of the following transactions with the environment? Choose all that apply.  

_____ Ingesting food molecules and sometimes entire cells
_____ Returning waste and other molecules back to the environment
_____ Responding to a host of chemical cues
_____ Directing synthesis of various food-digesting proteins
_____ Passing messages to other cells


__X__ Ingesting food molecules and sometimes entire cells
__X__ Returning waste and other molecules back to the environment
__X__ Responding to a host of chemical cues
_____ Directing synthesis of various food-digesting proteins
__X__ Passing messages to other cells

Biology & Microbiology

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The cells created during binary fission are which of the following?

a. genetically unique b. larger than the parent cell c. genetically identical d. a genetic mix of the two parent cells

Biology & Microbiology

In the accompanying diagram, ____ is labeled "D"

a. the appendix b. the cecum c. a polyp d. a portion of the small intestine e. the colon

Biology & Microbiology

According to the pressure-flow model, ____

a. water moves from an area of positive water potential to an area of negative water potential b. the evaporative pull of transpiration produces tension at the top of the plant c. the flow of sugar is driven by a pressure gradient between the source and the sink d. pressure is created by the movement of water into the roots from the soil e. the production of sugar pushes it out of the chloroplast and into the xylem

Biology & Microbiology

Optimal color vision occurs in the fovea, a depression in the retina where most of the ________ are located

Fill in the blank(s) with correct word

Biology & Microbiology