You have new items in your feed. Click to view.
Question and answer
What are some reasons for having a basic understanding of both the English and the Metric system of measurement?
Because some countries still use the outdated and clumsy Imperial system. International trade requires traders to understand each others' system and, unless the goods are labelled appropriately, consumers need to as well.
Expert answered|scijoe21|Points 1395|
Question
Asked 5/19/2012 10:50:16 PM
0 Answers/Comments
Get an answer
New answers
Rating

There are no new answers.

Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
Questions asked by the same visitor
`A somewhat frail 76-year-old female visit her physician's office for an annual checkup. Her social history shows she smokes a pack of cigarettes a day and she is a heavy coffee drinker. She has had several fractured bones in the last five years that required medical attention. During initial examination measurement show
Weegy: The underlying mechanism in all cases of osteoporosis is an imbalance between bone resorption and bone formation. [ [ In normal bone, there is constant matrix remodeling of bone; up to 10% of all bone mass may be undergoing remodeling at any point in time. The process takes place in bone multicellular units (BMUs) as first described by Frost in 1963.[43] Bone is resorbed by osteoclast cells (which derive from the bone marrow), after which new bone is deposited by osteoblast cells.[9] The three main mechanisms by which osteoporosis develops are an inadequate peak bone mass (the skeleton develops insufficient mass and strength during growth), excessive bone resorption, and inadequate formation of new bone during remodeling. An interplay of these three mechanisms underlies the development of fragile bone tissue.[9] Hormonal factors strongly determine the rate of bone resorption; lack of estrogen (e.g. as a result of menopause) increases bone resorption as well as decreasing the deposition of new bone that normally takes place in weight-bearing bones. The amount of estrogen needed to suppress this process is lower than that normally needed to stimulate the uterus and breast gland. The ?-form of the estrogen receptor appears to be the most important in regulating bone turnover.[9] In addition to estrogen, calcium metabolism plays a significant role in bone turnover, and deficiency of calcium and vitamin D leads to impaired bone deposition; in addition, the parathyroid glands react to low calcium levels by secreting parathyroid hormone (parathormone, PTH), which increases bone resorption to ensure sufficient calcium in the blood. The role of calcitonin, a hormone generated by the thyroid that increases bone deposition, is less clear and probably not as significant as that of PTH.[9] Osteoblasts, several displaying a prominent Golgi apparatus, actively synthesizing osteoid containing two osteocytes. The activation of osteoclasts is regulated by various ... (More)
Question
Expert Answered
Asked 5/13/2012 8:26:51 PM
0 Answers/Comments
27,226,928 questions answered
Popular Conversations
3 = b + 3
Weegy: (b3)2 is equal to b6. Solution: =(b3)2. =(b3)*(b3). =(b*b*b)*(b*b*b). =b*b*b*b*b*b. =b6. User: x/5 + 9 = ...
3/27/2017 7:19:00 AM| 2 Answers
With the exception of Nebraska, all states have what type of ...
Weegy: With the exception of Nevada, all states have Bicameral system. User: State governors have all of the ...
3/27/2017 12:29:46 AM| 1 Answers
Which of the following is true about a well-written paragraph? A) It ...
Weegy: It contains sentences that flow smoothly and logically. This is true about a well-written paragraph. ...
3/27/2017 1:26:50 AM| 1 Answers
One of the most talented chess players of all time, Bobby Fisher, won ...
Weegy: One of the most talented chess players of all time, Bobby Fisher, won the World Chess Championship on September ...
3/27/2017 1:24:58 AM| 1 Answers
what is (Avogadro-number)?
3/27/2017 5:41:36 AM| 1 Answers
Weegy Stuff
S
Points 602 [Total 703] Ratings 0 Comments 602 Invitations 0 Offline
S
Points 540 [Total 540] Ratings 0 Comments 540 Invitations 0 Offline
S
P
P
L
P
Points 244 [Total 1562] Ratings 1 Comments 234 Invitations 0 Online
S
R
Points 205 [Total 305] Ratings 1 Comments 145 Invitations 5 Offline
S
P
P
L
P
P
Points 184 [Total 1636] Ratings 1 Comments 174 Invitations 0 Offline
S
Points 30 [Total 40] Ratings 3 Comments 0 Invitations 0 Offline
S
Points 14 [Total 14] Ratings 1 Comments 4 Invitations 0 Offline
S
P
P
Points 14 [Total 744] Ratings 0 Comments 14 Invitations 0 Offline
S
Points 13 [Total 13] Ratings 1 Comments 3 Invitations 0 Offline
S
Points 12 [Total 12] Ratings 0 Comments 12 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.