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
Alecsey [184]
4 years ago
5

Plz help with number 8

Biology
1 answer:
Elena L [17]4 years ago
6 0
It’s false because you could have a dark colored mineral but have a slightly lighter outcome
You might be interested in
Agents that paralyze skeletal muscle by simple competitive inhibition of acetylcholine at muscle receptor sites are called?
Fed [463]

Agents that paralyze skeletal muscle by simple competitive inhibition of acetylcholine at muscle receptor sites are called?

a. nondepolarizing

b. depolarizing

c. antagonizing

d. repolarizing

Answer:

a. nondepolarizing

Explanation:

As the nerve impulse arrives, the synaptic end bulbs of the motor neurons release acetylcholine in the synapse. Acetylcholine binds to its receptors present at the motor endplate. This results in the opening of an ion channel in the ACh receptor to allow the movement of the Na+ into the cell. This makes the inside of the muscle fiber more positively charged, that is, depolarized.

Depolarization triggers a muscle action potential. Drugs or chemicals that paralyze skeletal muscle by competitive inhibition of acetylcholine at muscle receptor sites are called non-depolarizing as they do not allow the acetylcholine to facilitate the depolarization of the muscle fiber.

3 0
4 years ago
The most complex level of organizational hierarchy in the Arctic National Wildlife Refuge that is preserved is?
lawyer [7]

This reserve is home to terrestrial and marine mammals, including grizzly and polar bears, caribou, wolves, and wolverine as well as beluga and bowhead whales, walrus, and several species of seals. It was established for the purpose of preserving unique wildlife, wilderness, and recreational values.


The most complex level of organizational hierarchy in the Arctic National Wildlife Refuge that is preserved is every ecosystem in the area.



I hope it helps, Regards.

9 0
4 years ago
Read 2 more answers
how would you answer a person who says that the geologic column gives support for an earth that is at least 4.6 billion years ol
liubo4ka [24]
<span>The geologic column is a graphic representation of the layers of rock that make up the earth’s crust. By compiling data from local areas, scientists have constructed a composite picture of the earth. Evolutionists would have us believe that this is also a picture of the 4.5 billion year history of the earth. Using a bit of circular reasoning, the geologic column is used as support for biologic evolution, which is then sometimes used to confirm the order of the layers in the geologic column.</span>
4 0
3 years ago
Plants use carbohydrates to build things such as cellulose. How do plants acquire these building blocks to build mass?
koban [17]
I believe the correct response would be C. Plants acquire carbohydrates by producing them through the process of photosynthesis. This allows plants to then use the formed carbohydrates to build structural polymers, such as cellulose.
3 0
4 years ago
How long does it normally take to process one 12-ounce beer from your system?
Darina [25.2K]

Once the alcohol goes into our system, an ounce of it is process for a period of one hour.

The first stop happens in the stomach where absorption through the gastric lining and bloodstream occurs. Stronger drinks are absorbed more quickly. The second stop happens in the brain where its function decreases/ is increasingly impaired as the BAC or blood alcohol content grows. The third stop will be in the heart. However, it should be noted that it does not receive any physical alcohol, but its effects on the heart are strong. Alcohol is a vasodilator which means it causes blood vessels to dilate. This indicates more blood flow through the body-- but lowers the overall blood pressure. The fourth stop will be in the kidneys where blood is filtered. The fifth stop will be in the bladder where it will excreted from the body. Lastly, the liver is where the rest of alcohol left in your system is broken down. This process is known as metabolizing. The chemical that remains after metabolization is acetaldehyde and the body gets rid it by further metabolizing it into carbon dioxide and water.

Therefore, an ounce of alcohol is processed in our body for 60 minutes or one hour.

7 0
3 years ago
Other questions:
  • The first organism in a food chain is a what type of organism?
    8·2 answers
  • What are two roles for cillia?
    11·2 answers
  • A neonate is born with exstrophy of the bladder, and the parents are upset. they are told that corrective surgery will be perfor
    15·1 answer
  • Wheat production W in a given year depends on the average temperature T and the annual rainfall R. Scientists estimate that the
    9·1 answer
  • Would I be able to take this into an exam? (obviously not with all this stuff in it)
    5·1 answer
  • What are the three parts of an atp molecule?
    9·1 answer
  • A woman is heterozygous for the CF-associated gene (the alleles are represented here by the letters A and a). Assuming that meio
    14·1 answer
  • How do scientist test for methane leaks in a frozen lake or from the Earth's surface?
    14·1 answer
  • Which answer has the correct order for the four phases of mitosis?
    6·2 answers
  • Ph, Acids and Bases Quick Check
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!