Answer: The higher levels of estrogen may promote the midcycle LH surge, which is what urine OPKs look for. If this happens, the surge might come a couple of days earlier. This is called positive feedback. On the other hand, the higher estrogen levels my inhibit LH (this is called negative feedback) delaying the surge.
More Helpful Information: It is hard to predict. The higher levels of estrogen may promote the midcycle LH surge, which is what urine OPKs look for. If this happens, the surge might come to a couple of days earlier. This is called positive feedback. On the other hand, the higher estrogen levels my inhibit LH, delaying the surge. You will need to test for ovulation to find out.
Answer:
C. Disruptive Selection
Explanation:
Disruptive selection occurs when two extremes of continuous variation are favored more than intermediate traits.
The extremes of continuous variation exhibited in this species of snail is the color of their shell which allows them to blend with the background of their habitat.
The shady forest of the habitat makes the dark-shelled individuals to be better hidden from bird predators, while the light-shelled individuals are better hidden in well-lit brushy edge areas. This disruptive coloration exhibited by both individuals makes both individuals of this species of snail less vulnerable to predation.
Both individuals of this species both extremities would naturally survive in this habitat as snails with intermediate extremities would be highly preyed on since there is no area of intermediate brightness in the habitat to make them invisible to predators
This is the day to day problem of a medical microbiology laboratory: the "tube containing a liquid nutrient medium" in the real world could, for example, represent blood culture bottles (aerobic or anaerobic). The basic process is as follows: a loop is first flamed to ensure sterility and then used to transfer a small portion of bacterial-laden liquid media to the agar medium by streaking it across the surface of a sterile petri dish. The dish is then covered, inverted, and placed in an appropriate incubator. When colonies begin to form on the surface of the agar plate, individual colonies can be taken up using the sterile loop for analysis or further propagation. The assumption is that a single colony represents growth from a single bacterium.
