1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Verizon [17]
3 years ago
10

Blood calcium is regulated by a hormonal control system. normal blood calcium levels are 8.5 to 11 mg/dl. when calcium levels ar

e too high, the thyroid detects this and releases calcitonin. calcitonin stimulates the kidneys to release more calcium and it causes bones to absorb more calcium and build more matrix. identify the elements of this control system by matching the items below. some answers will not be used and some may be used more than once.
Biology
1 answer:
sattari [20]3 years ago
4 0
FEEDBACK MECHANISM is a regulatory mechanism in which presence of certain level of substance promotes or inhibits its further formation.
The regulation of secretion of Thyrocalcitonin from thyroid gland is an example of such feedback control mechanism. It occurs in two ways:

a) When calcium levels are too high, the thyroid detects this and releases calcitonin. calcitonin stimulates the kidneys to release more calcium and it causes bones to absorb more calcium and build more matrix. This is called Negative Feedback Control.

b) In response to a decrease in calcium levels, parathyroid hormone is released, which causes the release of calcium from bone and retention of calcium in the body, and the calcium level rises back to normal. This is called Positive Feedback Control.
You might be interested in
The reproductive organ that produces gametes is called a
svp [43]
Gonads are sex organs that produce gametes. Male gonads are the testes, which produce sperm and male sex hormones. Female gonads are the ovaries, which produce eggs (ova) and female sex hormones.
5 0
2 years ago
Explain what happens to species with lower resilience as compared to species with higher levels
Reika [66]

Answer

Species with lower resilience have less chance to survive.

Explanation

The resilience rate means to recover after destruction. The species having a higher rate of resilience recover fast when undergoing any damage hence have higher chance to survive. The species with lower resilience rate can collapse as a result of any damage to species by any internal factor such as disease or external factors such as food or climate change.

4 0
3 years ago
PLEASE HELP....... STUDYING FOR FINALS
Brums [2.3K]
It's time period will decrease....!
5 0
2 years ago
All living organisms are classified into one of three domains: Bacteria, Archaea, and Eukarya. Compare and contrast the domains
Musya8 [376]
C. The answer should be c, seeing as how bacteria die under high heat.
7 0
2 years ago
Read 2 more answers
Are rocks Abiotic or Biotic ?
sineoko [7]

Abiotic, if I remember correctly.

8 0
3 years ago
Read 2 more answers
Other questions:
  • Although all of the cells of a plant contain the same genetic material, root cells and leaf cells are not identical because they
    12·1 answer
  • Exophthalmos is a disorder caused by hypersecretion from the
    6·2 answers
  • Compare the organization of DNA in prokaryotic and eukaryotic cells
    6·1 answer
  • Which sexually transmitted infection has recently been implicated as a risk factor for coronary artery disease?HPV infectionHIV
    14·1 answer
  • The digestive tract is essentially one long tube. Write down order of the structures
    13·1 answer
  • Choose THREE examples that correctly predict the effect of a change on the ecosystem.
    10·1 answer
  • A tick thats bites a dog and infects it with Lyme disease would be considered an example of
    12·1 answer
  • What would happen if u place a cell in a container of water with high solute concentration?
    6·1 answer
  • Write the complementary DNA strand for the strand below TTAAGCGCTAATCGTACT
    10·1 answer
  • According to the principle of independent assortment, there is a _____ percent chance that any tall pea plant will produce eithe
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!