There is no perfect text book pregnancy. Everyone pregnancy is different, but mine changed within, about, the first 2 - 2 1/2 months. Actually, when I noticed the change in color, that is when I took the home pregnance test (and of course I was pregnant).
It can be a sign of pregnancy but EVERY women are different.
I presume you are titrating a standardized solution of (eg) HCl with NaOH to determine the molarity of the alkali. You would normally use an indicator which will change colour at the end point (eg colourless to pink for phenolphthalein). If the solution is very coloured to begin with it can mask the colour change and so make the end point hard to see and lead to a miscalculation of molarity.
Some men find big nipples and/or large areola unattractive (a 'turn off'); I don't know why; maybe because these parts of a woman change after child birth (for breast feeding); may be its' got someting to do with this point.
Yes, the purebred Birman can have colour point features.
Yes, a purebred Singapura can have colour point features.
Phenolphthalein is an indicator that undergoes a colour change from colourless to pink that begins at a pH of 8.0. So in the titration your performing the phenolphthalein will start to change colour at the point when the moles of acid equal the moles of base. Although this colour change occurs at a pH of 8.0 and not at a pH of 7.0 phenolphthalein is commonly used because of the distinctive colour change that occurs. Phenolphthalein is colourless in acids and pink/purple in base. It also turns orange in very strong acids.
Your nipples are probably not "sucked in", but simply inverted. Some people's nipples are just naturally this way, and is not harmful or bad in any way. Everyone's breasts and nipples vary wildly, despite what you see in the media. Inverted nipples are not normally an issue for breastfeeding or anything else. Surgery is possible to change the shape and protrusion.
Yes, a purebred British Shorthair can have colour point features.
If we add salivary amylase to any solution ( eg:iodine solution) the colour of solution changes to blue.THE TIME TAKEN BY THE SALIVARY AMYLASE TO CHANGE ITS(iodine solution) COLOUR TO BLUE IS CALLED ACROMATIC POINT OF SALIVARY AMYLASE. ie, the time upto which the solution is colourless and after that it gains blue colour.
The book illustration seem to change the colour of her ribbon at lot. At one point it is pink another time yellowish and it was also red at one point.
An indicator is so you can see when the end point of the reaction occurs, or when the reaction is complete. This can be an acid-base indicator such as methyl orange which determines the end point with a colour change.
That's the perfect point at which to change the time, and doing so presents no additional risk of pregnancy.