C. esophagus. it does not secrete any enzymes. its just do peristalsis. which is a rhythmic contractions and relaxations of muscles to push food along the gut
There are two correct answers:
1. A sequence of DNA that inhibits the action of enhancers in a position-dependent manner. Those are enhancer-blocking insulators and when an insulator is located in between a promoter and an enhancer, it prevents the influence of the enhancer on the promoter.
<span>2. A segment of DNA that forms supercoiled heterochromatin that is devoid of any DNA-regulator binding. Those are barrier insulators and they prevent euchromatin (transcriptionally active region) from turning into heterochromatin (transcriptionally inactive).</span>
The reason why plant life is unable to grow on the shores of Lake Powell is because the water levels are constantly fluctuating. During spring, <span>the rivers bring a large amount of water but</span> few weeks later, the run-off was over and the water level is decreased.
your answer is D
The answer is D, bacteria.
<span>Blackland prairies have a unique characteristic of black and
heavy clay soils because of the marine chalks, limestones, and shale that are
found in its composition. When soils reach major rivers and tributaries its
compositions changes into a more sandy soil. These types of environment are
considered to have some of the richest soil in the world where oak, elm, and cedar
trees are commonly found. Blackland
prairies have an elevation that ranges from 300 feet to 800 feet above sea
level. Its topography is mostly composed of rolling hills and level lands. </span>