In a tube-within-a-tube body plan, what forms the outer tube?
a. the body wall
b. the wall of the gastrovascular cavity
c. the vacuolar membrane
d. the intestinal wall
e. the gizzard wall.
A
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A cool, damp, north-facing slope is covered with ferns, whereas an adjacent drier south-facing slope has none. What type of distribution pattern is this?
a. random b. near uniform c. clumped d. concentrated e. isolated
Most of the carbon now present in the earth's
atmosphere will eventually end up in what two reservoirs? a. plants and animals b. plants and decomposers c. plants and soil d. plants and oceans e. plants and fossil fuels
The scientific name for coffee is Coffea arabica. More specifically, the species name is arabica
__________________ Indicate whether the statement is true or false.
In epithelial tissues ________.
A) cells that are damaged or lost at the surface cannot be replaced B) cells obtain nutrients via blood vessels found in the tissues C) extracellular fluid or fibers separate the individual cells D) there is little or no intercellular space between the cells E) the organelles and other cytoplasmic components are evenly distributed between the exposed and attached surfaces of the epithelial cells