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daser333 [38]
3 years ago
8

Which of the phrases describe a chemical bond?

Biology
1 answer:
ikadub [295]3 years ago
7 0

Answer:

Chemical bond is sharing of electrons between atoms

Explanation:

Hmm..well honestly, im not entirely sure what you want to know because you did not include the choices to select from but above is a phrase to describe a chemical bond.

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A tissue sampler that is being used for a medical procedure is placed inside a saline solution. Unknown to the medical team, the
solong [7]

Answer: Water will leave the cell and the cell will shrink.

Explanation:

Osmosis is the net movement of water from an area of low to high concentration of solutes through a semipermeable membrane. If none of the compartments contains solutes, then the water moves in either direction between the compartments. <u>However, if we add a solute to one of the compartments, this will affect the probability of water molecules leaving that compartment and moving into the other compartment.</u> The ability of water to move into or out of a cell is called tonicity. The tonicity of a solution is related to its osmolarity, which is the total concentration of all the solutes in the solution. A solution with low osmolarity has few solute particles per liter of solution, whereas a solution with high osmolarity has many solute particles per liter of solution. When two solutions with different osmolarities are separated by a membrane permeable to water but not permeable to solutes, water diffuses from the side with lower osmolarity to the side with higher osmolarity. So, solutions can be:

  • <u>Hypotonic</u>: The extracellular fluid has a lower osmolarity than the fluid inside the cell, it is hypotonic with respect to the cell, and the net flow of water will be into the cell.
  • <u>Hypertonic</u>: The extracellular fluid has a higher osmolarity than the cytoplasm of the cell, it is hypertonic with respect to the cell and water will flow out of the cell.
  • <u>Isotonic</u>: The extracellular fluid and the cell have the same osmolarity so there is no net movement of water.

If a cell is placed in a hypertonic solution, water will leave the cell and the cell will shrink due to the difference in pressure and may even die from dehydration.

7 0
3 years ago
Which of the following provides the best summary of the process of natural<br> selection?
d1i1m1o1n [39]
The best summary of the process of natural selection will be provided bythe option D that is genes are always passed from parent to offspring . Hence , out four inheritance is one of the option in the given question that is gene are passed from parent to offspring .
5 0
3 years ago
Which is the smallest division of time on the geologic time scale?
Irina-Kira [14]

Answer:

c

Explanation:

because i did the test

6 0
3 years ago
Read 2 more answers
1. Natural Challenges - Explore the first three websites using the links on the
Serga [27]

Answer:

a. A natural geological challenge that exists in my environment is a fault zone known as the San Andreas Fault. It's a major geological landmark where two tectonic plates meet in California. People in my area are prepared for the event of an earthquake by packing emergency clothes, food, water, shelter, etc. in the event of a major earthquake. Scientists believe that California is past due for a major earthquake in the 6.0-8.0 range that could happen any day now. Hope this helps :)

Explanation:

7 0
3 years ago
5. In the following chemical equation, ____ and ____ are
Katarina [22]

Answer:

reactants: carbon dioxide & water . products: glucose & oxygen

Explanation:

this is the chemical equation for photosynthesis

8 0
3 years ago
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