Answer:
B. acidity of the vagina
Explanation:
The genus <em>Lactobacillus</em> includes rods and coccobacilli that lack catalase and produce lactic acid as the main fermentation product. <em>Lactobacilli </em>grow optimally under slightly acidic conditions. They are part of the normal flora of the human body and are present in the intestinal tract, vagina, etc.
In the human female vagina, the <em>Lactobacilli </em>are rarely pathogenic and rather serve as antimicrobial agents and prevent the growth of pathogenic microbes by imparting acidic pH to the vagina. Production of lactic acid by these bacteria imparts acidic pH and allows them to serve as antimicrobial agents.
Answer: D. Hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.
Hypothesis A and B both are suggesting that caffeine intake is related to higher heart rate. But hypothesis B is proving it more certainly by suggesting the affects of caffeine intake on heart rate. As, heart rate of most people will be higher 30 minutes after they drink a cup of coffee is testifying the fact, that higher heart rate is related with caffeine intake.
Therefore, hypothesis B is more useful because it suggests a way to test the relationship between heart rate and caffeine intake.
The answer would be <span>Kyphosis </span>
A, is the correct answer.
The core is the densest because it is packed with SO much pressure that makes the molecules of nickel and iron(Elements of the core) immovable.
Answer:
25% type A, 25% type B, 25% type AB, 25% type O
If you put it into a punnett square:
B O
A AB AO
O BO OO
you get 25% for each phenotype