F1 generation they are purebreds meaning one parent is PP and the other is pp. they are hybrids in the F2
Below are the statements:
Lung cancer is frequently caused by tobacco utilize.
Hitting the bottle hard can prompt liquor harming and passing.
Until around 2008, a few specialists and expert associations supported yearly PSA screening for men starting at age 50. A few associations suggested that men who are at higher danger of prostate tumor, including African American men and men whose father or sibling had prostate growth, start screening at age 40 or 45.
I think it's letter A.litter left on the field after a ball game
B because cactus' are usually in a dry environment, they close their stomata during the day to keep water vapor from leaving the plant. Instead they do their processes at night to avoid extreme water loss.
Answer: 43 x 10^6 CFU.
Explanation:
Plate count is a method used to determine the number of viable microorganisms in a sample. When the bacterial concentration is high, serial dilutions are carried out in a 1:10 sequence. <u>Then, the dilutions are successive dilutions keeping the dilution factor constant at each step</u>. Small aliquots of these dilutions are seeded in medium contained in a Petri dish where the bacteria grow forming colonies. Then the plates are incubated and colonies develop both within the agar and on the surface.
If the concentration of the seeded aliquot is too high, the bacteria will grow too much and it will not be possible to distinguish the colonies. <u>However, if the concentration is very low, the number of colony forming units (CFU) may be very low and thus can be counted</u>.
Colony forming units are calculated:
CFU = Number of colonies / (volume seeded on the plate * dilution).
The dilution is 10^-6, the number of colonies counted is 43, and usually the volume plated is 0.1 mL, so we replace that in the equation:
CFU= 43 / (0.1 mL * 10^-6)
CFU= 43000000 = 43 x 10^6