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
Sav [38]
3 years ago
13

.

Biology
1 answer:
Nadya [2.5K]3 years ago
7 0

Answer:

The gravitational attraction between the sun and Earth

Explanation:

because of the gravity.

You might be interested in
Meteorology is best defined as
Nata [24]
<span>Meteorology is BEST defined as the study of weather and climate.</span>
4 0
3 years ago
Read 2 more answers
Gases are a unique state of matter because the volume of a gas can be compressed or expanded based on its temperature. Jacque Ch
just olya [345]

Explanation:

Since Charles found that the volume is directly proportional to temperature when the mass and pressure remain constant this means that with increase in temperature, there will be increase in volume.

Mathematically,       V \propto T at constant Pressure

This equation represents the relationship in Charles' law.

6 0
3 years ago
Read 2 more answers
6. How is a cell membrane similar to the dialysis tubing used in this experiment?
NNADVOKAT [17]
The dialysis tubing and cell membrane are similar in the fact they protect the cell. The tubing as well as cellmembranes are selectively permeable, they control the movement of substances in and out of the cell. Starch molecules are larger than glucose molecules.
3 0
4 years ago
Read 2 more answers
How do C4 plants fix carbons?
OverLord2011 [107]

Answer:

C4 plants—including maize, sugarcane, and sorghum—avoid photorespiration by using another enzyme called PEP during the first step of carbon fixation. ... PEP fixes carbon dioxide into a four-carbon molecule, called malate, that is transported to the deeper bundle sheath cells that contain Rubisco.

Explanation:

3 0
3 years ago
Cyanide was used for treating cancer What might be the rationale behind this treatment?
enyata [817]

Answer:

   Cyanide is considered a specific neurotoxin and is often associated with high levels of cellular calcium and inhibition of antioxidants, leading to the formation of reactive oxygen species (ROS) and consequent lipid peroxidation.  But cyanide toxicity is mainly due to the iron (Fe (III) or Fe3 +) iron binding of the mitochondrial cytochrome oxidase enzyme of the electron transport chain. This enzyme mediates the transfer of electrons to molecular oxygen . By blocking this enzyme, the cell is unable to use oxygen and uses an anaerobic metabolism reducing pyruvate to lactic acid (lactic fermentation), which results in tissue anoxia and the rapid development of lactic acidosis. There is also a change in cell metabolism as there is a depletion in energy production.  So it causes cell death. This would be the mechanism to kill cancer cells. Although, cyanide cant be use to treat cancer because it kills all the cells (leading to death) and not only the cancer cells.

 Explanation:

   Some researchers founded that cyanide poison may have the role of being a powerful cancer fighter. It believes that they can relate the enzyme to cancer by looking for antibodies that can recognize a protein found only in certain cancers. The method would produce an agent that could potentially kill cancer cells and leave undamaged tissue healthy.

 As for the deadly nature of cyanide, scientists say the amount produced by this technique iwould be sufficient only to kill the cancer target cell by a combined enzyme and antibody molecule.  And a natural enzyme produced in the human liver could detoxify any cyanide that could escape the tumor. Although, cyanide is a drug that, even if ingest a small amount, could lead to death. Some studies are going on, but until now, theres no safety of taking cyanide to treat cancer cells.

5 0
3 years ago
Other questions:
  • Please Help! What is the stimulus shown in the photographs?
    8·1 answer
  • 4. A trait for snapdragon flower color is controlled by incomplete dominance.
    15·1 answer
  • Explain the differences in heartbeat rates? Why do they exist?
    12·2 answers
  • Both euglena (a eukaryote) and cyanobacteria are photosynthetic unicellular organisms found in pond water. The feature that dist
    9·1 answer
  • Which of the choices below is not a function of the urinary system? A. helps maintain homeostasis by controlling the composition
    5·1 answer
  • What is made up of a phosphate a sugar and a base?
    10·2 answers
  • Which macromolecules are responsible for carrying the genetic material in a cell?
    12·1 answer
  • Please help me...
    10·2 answers
  • Please help. It is about cells
    15·2 answers
  • RNA molecules have 4 nucleotides but unlike DNA, RNA lacks<br><br> and<br><br> instead has
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!