Eric made a physical model of a cell membrane by putting one zip-top plastic bag inside another. He punched some straws through the plastic so that they led from outside the outer bag to the inside of the inner bag.

Which of the following features of a cell membrane can be seen using Eric's physical model?

Proteins and other molecules can move around within the cell membrane.
A cell membrane is made of two layers.
Some molecules can pass directly through the cell membrane.
Pores and proteins in the cell membrane allow passage through it.

If these are the missing choices: a. to determine skin temperature, place the back of your hand against the patient's skin.b. determine body temperature by touching the patient's hands and feet.c. skin temperature will tell you very little about this patient's condition or well-being.d. the patient's skin temperature and color will likely be warm and red.my answer is: a. to determine skin temperature, place the back of your hand against the patient's skin. using the back of the hand to check for temperature rather than the palm is more effective because the back of the hand has more nerves that can feel and transmit the temperature than the palm.