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
a bar of gold has a temperature of 27 and a bar of aluminum has a temperature of 22. Which statement best explains why the bar o
Svetach [21]

Answer:

The Particles that make up the aluminum bar are moving slowly.

Explanation:

Hope this helps.

3 0
3 years ago
Read 2 more answers
the diagram below represents levels of glucose and insulin found within the bloodstream of a healthy person
Makovka662 [10]
The increase in insulin level following an increase in glucose level in the blood can best be explained by A FEED BACK MECHANISM THAT REGULATE THE BLOOD GLUCOSE LEVEL.
Insulin is an hormone that is secreted by the pancreas and it functions by regulating the amount of glucose that is found in the blood. When the level of glucose in the blood is higher than normal, insulin interfere by converting the excess glucose into glycogen. The glycogen is stored in the liver and in the skeletal muscles and they will only be converted back into glucose, if the level of glucose in the blood is lower than normal.
6 0
3 years ago
.What is not a feature of a prokaryotic cell?aa nuclear membrane bdna cribosomes da plasma membrane eenzymes
deff fn [24]
There is not any nucleus and nuclear bound organelles in prokaryotes....
6 0
3 years ago
Small, prolific mussels called zebra mussels were first introduced into the Great Lakes by a foreign cargo ship. They became a s
Dvinal [7]

Answer: Yes, because Congress may adopt laws regulating navigable waters.

Explanation:

It should be noted that municipalities using copper-based paint on their intake pipes can successfully be prosecuted for violating the federal law because Congress may adopt laws regulating navigable waters.

Under the Supremacy Clause, when the action of either the state government or the local government conflicts with the federal laws which are deemed valid, then such cities can be prosecuted.

8 0
3 years ago
Dangling high above the ground, this rock climber relies on muscular strength to pull her weight higher and higher. However, mus
Aloiza [94]

Answer:

The correct answer is - It has to act together with the nervous system mainly with other systems that assist in rock climbing.

Explanation:

Rock climbing is a physical activity or sport that could practice indoor or outdoor with mountains. It is a sport that requires physical and mental strength as it requires muscle strength, coordination, or balance, agility, endurance, and mental control over body and mind.

Muscular systems involve pulling the weight of an individual towards and leg muscles to hold whereas the nervous system controls or maintain the actions of muscles and also helps in balance the body of the climber. This neuromuscular set helps in maintains the muscle's tonicity in order to execute the action of climbing.

Other than these two main body systems there are cardiovascular system, circulatory system and respiratory system also helps in providing the conditions like increase oxygen input, high heartbeat, and more.

6 0
2 years ago
Read 2 more answers
Other questions:
  • The larvae of honey bee are voracious feeder why​
    5·1 answer
  • Ryan, an 8-year-old boy, has the habit of swallowing toothpaste. as a result, his teeth have become discolored. it can be said t
    7·1 answer
  • People once belived organisms could grow from food or dirt.How might the scientific study of cells have affected this view?
    7·1 answer
  • If you were testing how well different dish soaps cleaned grease, the independent variable would be the
    7·1 answer
  • In humans, red-green color blindness is determined by an X-linked recessive allele (a), whereas eye color is determined by an au
    14·1 answer
  • When a driver mixes alcohol or other drugs together, it creates a?
    6·2 answers
  • As subduction occurs, the oceanic crust moves from the _____ toward a ____.
    7·1 answer
  • What is true about all real machines?
    9·2 answers
  • Name a part of the hydrosphere that is far away from you. Then, explain how water in that part of the hydrosphere could travel t
    5·1 answer
  • Select the correct answer.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!