What is true about the structure or function of the plasma membrane? A: The bilayer structure forms a solid boundary that separates the cell from its environment.

B: Large molecules often cross the plasma membrane while inside vesicles.

C: Hydrophobic molecules keep the cell from getting too much water.

D: It is made entirely of integral proteins.

Which anatomical plane is the only one that could not show both the sternal region and vertebral region

Which of the following determines the specificity of a dna probe? a. type of radiation b. level of enzymatic activity c. number of neutrons d. complementary base pairing

Astudent sees several ants walking up a wall following the exact same trail that an ant took earlier. she wants to apply the scientific method to determine how the ants detected the trail. which of these steps would come first in her application of the scientific method? perform an experiment by cleaning the scent away from part of the trail. draw a conclusion that the ants follow a scent trail. make a prediction about what the ants will do after she cleans away part of the trail. hypothesize that the ants are following a scent trail that the first ant left.