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
Lena [83]
3 years ago
15

When the body becomes dehydrated, a chemical signal is sent that causes nephrons in the kidneys to absorb more water and excrete

more salts. this is an example of a _____?
Biology
2 answers:
zhuklara [117]3 years ago
8 0
I believe the answer you are seeking is feedback loop
inessss [21]3 years ago
7 0

Answer:

Negative feedback

Explanation:

Dehydration stimulates the posterior pituitary gland to release vasopressin hormone in blood which in turn makes kidneys to reabsorb more water. vasopressin prevents water loss by stimulating the formation of concentrated urine and release of more salts from the body. Since the hormone is released to bring about change in the hydration level of the body (to restore the controlled condition again by reversing the change), it is an example of a negative feedback system.

You might be interested in
What does the earliest evidence of life look like in the fossil record​
soldier1979 [14.2K]

Answer:

Scientists have discovered what they say could be fossils of some of the earliest living organisms on Earth. They are represented by tiny filaments, knobs and tubes in Canadian rocks dated to be up to 4.28 billion years old.

Explanation:

5 0
3 years ago
A pollutant formed as a result of chemical reactions in the atmosphere.
vlabodo [156]

Answer:

d

Explanation:

4 0
2 years ago
Answer all of these questions about cancer.
REY [17]

Cancer is the name given to a collection of related diseases. Cancer is more than one type of disease.

In cancer, as a result of genetic mutations, this regulatory process malfunctions, resulting in uncontrolled cell proliferation.

CAD, Stroke, Respiratory illness, COPD are all diseases related to cancer.

Inherited genetic mutations play a major role in about 5 to 10 percent of all cancers.

There are many environmental pathogenic factors that can cause cancer. For example , Tar and Coal-Tar Pitch , Emissions , Secondhand Tobacco Smoke (Environmental Tobacco Smoke) , Arsenic , Soot , Asbestos , Wood Dust.

When cancer cells break away from a tumor, they can travel to other parts of the body through the bloodstream or the lymph system. Cancer is hard to treat in later stages because it probably has already spread through out the body.

The grade of a cancer depends on what the cells look like under a microscope. In general, a lower grade indicates a slower-growing cancer and a higher grade indicates a faster-growing one.

Some examples of cancer treatments of cancer are, Surgery, Chemotherapy, Radiotherapy, Cancer drugs, Hormone therapy, Stem cell and bone marrow transplants, Targeted cancer drugs.

A new treatment involving a photosensitising agent that makes cells more sensitive to light and, by doing so, causes cancer cells to be destroyed when a laser light is directed on a cancerous area.

One challenge is, druggable genomic alterations are diverse and represent only small subsets of patients in certain tumor types, which limits testing their clinical impact in biomarker-driven clinical trials. Next-generation sequencing technologies are increasingly being implemented for molecular prescreening in clinical research, but issues regarding clinical interpretation of large genomic data make their wide clinical use difficult.

3 0
3 years ago
Regarding plasma membranes, which of the following statements is false?
ehidna [41]

Answer:

The correct answer to the question: Regarding plasma membranes, which of the following statements is false, would be, B: The thickness of the plasma membrane is only about 1 nm.

Explanation:

The plasma membrane is the structure of the cell that provides a protective barrier, between a cell´s intracellular environment and the extracellular matrix. Furthermore, aside from providing structural support, and protection, a cell´s membrane also serves as a communication media between the cells, and between a cell and all other elements outside of it. This membrance is formed by a phospholipid bilayer, with a space in between the two layers where the tail ends meet and it also has in its structure cholesterol and other lipids that allow the membrane to be fluid, but also structurally strong. However, what is not true is the thickness, as it is known that plasma membranes´ thickness actually lies between 7.5 to 10 nm, and not merely 1 nm. This is why the answer is B.

6 0
3 years ago
Which statement best summarizes the law of conservation of energy
lakkis [162]
The law of conservation of energy basically states that energy a\cannot be created or destroyed, therefore if it disappears in one form it must reappear in another (answer C.)<span />
3 0
3 years ago
Read 2 more answers
Other questions:
  • T/F Polar molecules will easily cross plasma membrane composed of a lipid bilayer.
    8·1 answer
  • Lipids are formed by chains of fatty acids joined to a molecule of ________.
    5·2 answers
  • Our body temperature stays constant no matter the changes that may occur in the outer environment - for example, a hot summer af
    6·1 answer
  • In this section write a short paragraph about photosynthesis using the following words in a meaningful way ; Photosynthesis, wat
    5·1 answer
  • A seed was discovered and, when planted, grew to be a large flowering plant. ​
    9·1 answer
  • Which characteristics are used to differentiate among the six kingdoms?
    6·1 answer
  • Why is a body of water cooler in the summer than the air surrounding the body of water?
    12·1 answer
  • PLEASE HELP ASAP!!!!
    5·1 answer
  • What is a role of a scientist?
    6·1 answer
  • A patient in hospital has a temperature of 39.8°C. A healthy person’s temperature is 37.9°C. How many degrees above this is the
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!