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lesya [120]
3 years ago
14

Explain if an unknown substance found on a meteorite is determined to contain no trace of carbon, can scientists conclude that t

here is life at the meteorites origin
Biology
1 answer:
Svetach [21]3 years ago
5 0
All life as we know it is carbon-based, so what scientists could determine is that there is no carbon-based life at the origin of the meteorite. However, this does not necessarily mean that there is no life there; our knowledge is only based on our experiences of life on Earth, so it is possible that life has developed in other regions of space upon other elements and formations. For example, there could be life based on silicon or other chemical compositions. 
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Passive transport process.
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Compare and contrast polysaccharides and nucleic acids in terms of monomer diversity and how they monomers are joined together
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The monomer units of the carbohydrates vary in their total numbers extensively. Moreover, positions of the carbonyl groups along with the orientation of the hydroxyl groups also vary in the carbohydrates' monomers. The presence of any modification is also variable.

On the other hand, the nucleic acids have only 4 monomeric units. The linkages between the nucleic acid residues have less geometry than the glycosidic linkages.

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Snake bite antivenin is an example of
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Answer:

It would have to be passive immunity

Explanation:

Because active immunity develops after being exposed to the pathogen and its not acquired either because its similar to active and it isn't inborn because that comes from your parents

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2 years ago
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The chemical equation shown below represents photosynthesis. What is the role of substance A in photosynthesis?
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The answer is C. The missing product (A) is water an it combines with carbon dioxide and light to produce glucose (B).

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The human immune system fights infection by
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Answer;

Antibodies.


The human immune system fights infection by releasing antibodies.


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It does so using various types of mechanism, one is by the production of antibodies.

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These antibodies also activates proteins known as complements which assist in the killing of bacteria, viruses and the infected cells.

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