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Because some countries still use the outdated and clumsy Imperial system.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
25,929,445 questions answered
Popular Conversations
At the time of the Glorious Revolution and the writing of the English ...
Weegy: If you would be so kind as to finish your question, I'd be happy to assist you.
8/23/2016 9:33:05 PM| 3 Answers
If you visit the Senate chamber during a session on an average day, ...
Weegy: Teamwork is a joint action by two or more people or a group, [ in which each person contributes with different ...
8/23/2016 8:40:25 AM| 2 Answers
is the study of the environment that includes the physical, ...
Weegy: biological science - the science that studies living organisms. User: is the study of how living ...
8/23/2016 7:32:16 PM| 2 Answers
Which of the following economic systems theoretically has the most ...
Weegy: Capitalist has the most limited government interference. User: Complete this list of the factors of ...
8/24/2016 6:43:12 AM| 2 Answers
Weegy Stuff
S
Points 598 [Total 669] Ratings 4 Comments 558 Invitations 0 Offline
S
1
L
Points 422 [Total 1256] Ratings 2 Comments 402 Invitations 0 Offline
S
L
P
P
P
P
Points 407 [Total 3662] Ratings 0 Comments 407 Invitations 0 Offline
S
Points 106 [Total 106] Ratings 0 Comments 106 Invitations 0 Offline
S
L
P
P
P
Points 46 [Total 3862] Ratings 0 Comments 46 Invitations 0 Offline
S
Points 40 [Total 45] Ratings 0 Comments 0 Invitations 4 Offline
S
Points 27 [Total 254] Ratings 0 Comments 27 Invitations 0 Offline
S
Points 13 [Total 13] Ratings 0 Comments 3 Invitations 1 Offline
S
L
C
Points 11 [Total 4491] Ratings 1 Comments 1 Invitations 0 Offline
S
Points 10 [Total 10] Ratings 1 Comments 0 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.