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Likurg_2 [28]
3 years ago
6

The Miller-Urey experiment showed:_________

Biology
2 answers:
valentina_108 [34]3 years ago
5 0
The answer is D. conditions in the “primitive earth environment” could have generated complex molecules
Natali5045456 [20]3 years ago
4 0

Answer:

D. They used simple molecules from early times and put them in a simulation from that time and it made complex ones that we have now.

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When you ask the question, “Has this author been cited in other resources?” which aspect of the Web resource are you evaluating?
Elena L [17]
When you ask the question "Has this author been cited in other resources?" you are evaluating the relevance of the resource. You cite a source in order to get a stronger picture of its intellectual value. And if the author (the source) you cited has been cited in other resources too, this means that the source is reliable (is able to be trusted), you are evaluating the reliability of the source. 
There are several reasons why you should cite resources in your works: to proof your thesis, to show proper research and many more.
4 0
3 years ago
Can you grow plants without soil? Explain. Write more about those methods. How will plants get nutrients for their growth?
monitta
Yes, you can grow plants in just water. when you do grow them in just water there have to be neutrinos added to the water for the plant to thrive. hope this helped let me know if the answer was correct

4 0
3 years ago
g The Electron Transport Complex (ETC) consists of four proteins. How many of these proteins directly contribute to the proton g
vladimir2022 [97]

Answer:

Three proteins directly contribute to the proton gradient by moving protons across the membrane

Explanation:

The Electron transport chain is a group of proteins and molecules incrusted in the internal mitochondrial membrane and organized into four complexes, I, II, III, and IV. These complexes contain the electron transporters and the enzymes necessary to catalyze the electron transference from one complex to the other. Complex I contains the flavine mononucleotide -FMN- that receives electrons from the NADH. The coenzyme Q, located in the lipidic interior of the membrane, conducts electrons from complex I and II to complex III. The complex III contains cytochrome b, from where electrons go to cytochrome c, which is a peripheric membrane protein. Electrons travel from cytochrome c to cytochromes a and a3, located in the complex IV. Finally, they go back to the matrix, where they combine to H+ ions and oxygen, to form the water molecule. As electrons are transported through the chain, protons are bombed through three proteinic complexes from the matrix to the intermembrane space. These are complexes I, III and IV.  

6 0
3 years ago
X has successfully been transmitted to your body; you are now infected. All of the following among A-D are possible consequences
Natasha2012 [34]

The complete options to the question includes:

A.You never show any symptoms of disease and there is no sign of the pathogen in your body.

B.You exhibit mild symptoms of disease and the levels of the pathogen in your body are quickly reduced and eliminated.

C.You succumb to the worst effects of the disease but survive due to administration of antimicrobial agents.

D.You never show any symptoms of disease, but the pathogen persists in your body.

E.There are no exceptions, A-D are all plausible outcomes.

Answer: The correct option is A (You never show any symptoms of disease and there is no sign of the pathogen in your body).

Explanation:

Infectious diseases occurs when an individuals system is invaded by pathogenic microorganisms (virus,bacteria,fungi and parasite). These microorganisms may or may not cause disease but this depends on the healthy state of the host. They can also be transmitted from one person to another.

To explain the options why all are plausible outcomes when X has successfully been transmitted into the body except A includes:

B) option B can occur when the immune system of the host is able to combat X.

C.) Option C can occur when antimicrobial is given to suppress the activities of X

D) option D can occur when the individual may become an asymptomatic carrier of X. ( Individual shows no symptoms and signs of disease caused by X but the pathogen is still present in the body).

But option A is not possible as X must be present to show there was a transmission.

6 0
3 years ago
Which of the following is a form of active transport? A) Sodium-potassium pump  B) Simple Diffusion  C)Osmosis     AND WHY?
Bingel [31]
I think simple diffusion is a former of active transport
7 0
3 years ago
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