Answer:
age, overall health, amount of exercise, and quality of diet (especially protein and bone ... fat deposits are not all created equal with regard to their health risks. ... people who suspect that they have a food allergy or intolerance should take
Explanation:
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"These" should be referring to Alkali Metals.
They include metals such as Lithium, Sodium, Potassium etc.
They're classified as Group I elements because they all have one outmost shell electrons. This is why these metals are so reactive because they only need to lose one electron in order to achieve the octet of electrons (or duplet for Lithium), which means complete outmost shell electrons (2 or the 1st shell, others are 8).
The reason why they're especially reactive to Halogens (Group VII) elements are that Halogens have 7 outmost shell electrons, which only needs one more electron in order to get to the octet of electrons. So, if an Alkali metal reacts with a Halogen, the metal would give one of their electrons to the Halogen, that way, both of the elements can have an octet of electrons (or duplet).
Chlamydia if left untreated can lead to all symptoms listed above.
Stiffness in the neck can make it difficult for drivers to look behind when they are backing up.
