During the knee replacement surgery, cartilage and bone that are causing the patient pain will be replaced with the new knee replacement implant. the knee replacement implant will replace both the top and the bottom parts of the knee joint. the average age of a patient needing knee replacement surgery is about 70 years.

which two criteria should the doctors be considering as they develop their knee replacement implant design?
a.
the design should chemically react with the surrounding leg bone, and it should be able to bend.
b.
the design should be strong enough to support the patient's weight, and it should be able to bend.
c.
the design needs to be able to grow as the body grows, and it should lock into place to support the body.
d.
the design should break down quickly in the body, and it should lock into place to support the body.

garcinia cambogia became popular worldwide after being featured on the dr. oz show in 2012.

it is a small, green fruit, shaped like a pumpkin.

the skin of the fruit contains hydroxycitric acid (hca). this is the active ingredient in garcinia cambogia extract, which is marketed as a diet pill.

how it works: animal studies show that it can inhibit a fat-producing enzyme in the body and increase levels of serotonin, potentially to reduce cravings (1, 2trusted source).

effectiveness: one study with 130 people compared garcinia against a dummy pill. there was no difference in weight or body fat percentage between groups.

a 2011 review that looked at 12 studies on garcinia cambogia found that, on average, it caused weight loss of about 2 pounds (0.88 kg) over several weeks.

side effects: there are no reports of serious side effects, but some reports of mild digestive problems.

answer (c) by causing social withdrawal;