D - All of the above
because a machine can do all of those things.
The atria are chambers<span> in which </span>blood<span> enters the heart. They are located on the anterior end of the heart, with one atrium on each side. The right atrium </span>receives <span>deoxygenated </span>blood<span> from systemic circulation through the </span>superior vena cava<span> and</span>inferior venae cavae<span>.</span>
Answer:
At lower temperature, membranes maintain fluidity by having a higher percentage of unsaturated fatty acids.
Explanation:
The fluidity of the membranes is affected by temperature. At lower temperature conditions, tight packing of saturated fatty acids makes the membranes more rigid. Therefore, membranes incorporate a higher proportion of unsaturated fatty acids to maintain the required fluidity. This is why the membrane lipids from the tissue near the hooves have a higher proportion of unsaturated fatty acids as the temperature of the tissues of a reindeer near extremities is lower than that of the tissues from the upper leg.
Answer:
Which of the following evidence best supports a claim that tryptophan functions as a corepressor?
The trpR gene codes for a repressor protein that has a DNA
Explanation:
