In a cell membrane, the phospholipid heads are
a. hydrophobic
b. nonpolar
c. dissolved in the cell’s water
d. sandwiched between the phospholipid tails
e. formed by fatty acids
C
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The organisms that live in a kelp forest and the sediment or rocks the kelp uses to attach to is an example of what?
a. None of these choices b. An ecosystem c. Biosphere d. Ecology
When the sequence CGCAAUGCAAGGA is translated, the corresponding protein will be arginine-asparagine-alanine-arginine.
Answer the following statement true (T) or false (F)
Population doubling time will increase with a(n) ________ average age of first birth in women
Fill in the blank(s) with correct word
A typical AA battery has a potential of 1.5V. One can think of the potential in a neuron as having similarities to that of a battery.If you were to compare the resting potential of a neuron to a battery, which way is the battery oriented?
A. Positive terminal pointing toward the axon, negative terminal toward the dendrite B. Both terminals inside the cell soma C. Positive terminal pointing toward the dendrite, negative terminal toward the axon D. Positive terminal inside of the cell, and negative terminal outside E. Positive terminal outside of the cell, and negative terminal inside