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
icang [17]
3 years ago
12

Osteoporosis is a condition in which the density of bones is decreased so much that the individual is at a higher risk of fractu

res. The more calcium in the bones, the better the bone density. Which of the following would produce the greatest increase in bone calcium levels?
A) calcitonin injection
B) calcitonin receptor blocker
C) parathyroid hormone injection
D) glucagon receptor blocker
Biology
1 answer:
IRISSAK [1]3 years ago
5 0

Answer:

A) Calcitonin injection

Explanation:

Parafollicular cells or C-cells of the thyroid gland produce a hormone which is involved in the regulation of calcium levels in the blood. This hormone is Calcitonin. It works in an antagonistic manner with the Parathyroid hormone (PTH). Calcitonin decreases the calcium level in the blood by increasing absorption of calcium ions in bones. In osteoporosis, when the patient is given the injection of hormone calcitonin, it produces and increase in bone mass because it negatively affects the rate of absorption of bone by the osteoclasts.

You might be interested in
On the Galapagos Islands, Darwin observed tortoises with domed and saddle-shaped shells. How did Darwin's observations of these
photoshop1234 [79]

Answer:

The correct answer would be C.  The tortoises provided evidence that different species have adaptations suited to their particular environments.

Darwin observed that how different environment on different island lead to the development of different species as a result of adaptations and natural selection.

For example, tortoise inhabiting well-watered islands which used to have short and cropped vegetation had developed a dome-shaped shell.  

In contrast, the tortoise inhabiting the arid islands had developed saddle-shaped shells. It is because they needed to stretch their necks in order to reach branches of cactus and other vegetation available in the area.  

Consequently, they developed long necks and high peak to the front edges of their shells. It made it possible for them to stretch their heads vertically.

7 0
3 years ago
Read 2 more answers
summary of 2 main parts of photosynthesis (light-dependent reactions and light-independent reactions/Calvin Cycle). Be sure to e
Alex_Xolod [135]

Explanation:

Photosynthesis is a process taking place in the green plants which are involved in the formation of the glucose molecule using Carbon dioxide and water in the presence of sunlight.

The process of photosynthesis takes place in two phases:

1. Light-dependent phase

2. Light independent phase

<u>Light-dependent phase </u>

Light-dependent phase takes place in the thylakoid membrane where the Photosystem I and II are present.

The photosystem II absorbs the sunlight of 680 nm wavelength which excites the electron of the chlorophyll. The electron moves in the photosystem and through the reaction center-exit the photosystem and enters the electron transport chain.

The electron is then transferred via the electron carriers like plastoquinone, cytochrome, and plastocyanin and is transferred to photosystem I which absorbs the light at 700 nm. From here the electron is taken by ferrodoxin and form NADH.

The electron then reaches the ATP synthase and forms the ATP molecules thus ATP and NADPH are formed in the reaction but the loss of electron in chlorophyll is fulfilled by the water molecule which on hydrolysis provides the electrons and stabilize the structure.

<u>  Light independent phase </u>

The phase during which the Rubisco enzyme binds with the carbon dioxide and forms 3-PGA. This 3 PGA is then reduced to G3P which requires the 6 ATP molecules. The G3P molecule then forms 1 molecule of glucose and the Rubp is again regenerated.

7 0
3 years ago
Chemicals can be dissolved in water that seeps into the soil and enters the aquifer.
fgiga [73]

Explanation:

The chemicals are contaminant in the ground water system and they can inflict serious health hazards on humans when water is sourced from such polluted ground water system.

  • Consuming contaminated water can lead to cholera and diarrhea.
  • It makes ground water toxic and poisonous.
  • Drinking contaminated ground water can lead to the introduction of heavy metals in the body.
  • Chemical wastes containing radioactive materials can damage body tissues.
  • They render ground water unsafe for drinking ans usage.

Learn more:

Air pollution brainly.com/question/10743354

#learnwithBrainly

7 0
3 years ago
The leaf is 4 inches long what kind of observation is this
lord [1]
It's an sight observation you're using your eyes to see it it's one of your 5th sences
8 0
3 years ago
Read 2 more answers
What is found in the nucleus of an atom? Question 1 options: electrons neutrons and protons protons and electrons neutrons and e
ladessa [460]

Answer: in the atom you can find: electrons and protons

Explanation:

You can find electrons in an atom because it is the negative energy that rounds the atom on the outside’s part.

Then, the protons are the positive energy that is on the atom’s inside.

Both of the energies are fused and it end on a neutron energy.

4 0
3 years ago
Read 2 more answers
Other questions:
  • What is a major source of carbon in the marine ecosystem?
    7·1 answer
  • A cell with a diploid number of 36 undergoes meiosis, how many chromosomes are in each daughter cell?
    11·1 answer
  • Corals feed on each other.<br> Please select the best answer from the choices provided<br> T<br> F
    10·2 answers
  • Combustion does <br>NOT cause CO ?<br>true<br>false<br>​
    8·2 answers
  • What is tissue? Include examples for both plants and animals.
    7·1 answer
  • Besides hospitals, where else do we use antibiotics?<br>​
    11·2 answers
  • Cavendish bananas are popular species among banana growers because they're predictable. All of these bananas are grown to have t
    12·2 answers
  • What are the precautions that should be token when using a photometer? please help me​
    5·1 answer
  • Describe the adaptations of the mammalian kidney to selective reabsorption<br><br>​
    13·1 answer
  • Are the prokaryote’s components right?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!