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Neko [114]
2 years ago
12

What is natural resources ??with examples ​

Biology
2 answers:
Allushta [10]2 years ago
7 0

Answer:

<em>Natural resources are materials from the Earth that are used to support life and meet people's needs... Examples - oil, coal, sand.. Etc</em>

disa [49]2 years ago
7 0

Answer:

Natural resources are resources that exist without any actions of humankind. Oil, coal, natural gas, metals, stone and sand are natural resources.

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Some have speculated that the origin of life occurred at geothermal vents. amino acids can form there. compared to the amino aci
cluponka [151]

There are a number of amino acids that have formed under certain environmental conditions if the required elements are present and the energy conditions ar compatible with chemical assembly. These conditions have also allegedly formed amino acids on meteors, asteroids and comets.


But, amino acids are a very minor component of more complex biochemical assemblies required for life. Pentose sugars are also required, which form under different environmental conditions than amino acids. More importantly, only left-handed homochiral amino acids and right-handed homochiral sugars can form functioning biochemical assemblies that are viable in an organism. But, natural conditions, like hydrothermal vents only produce racemic versions of sugars and acids, meaning they are always approx. 50% left and right handed. This is fatal to forming viable biochemical assemblies.


Further, it is not possible for all of the 20+ homochiral amino acids needed for a living organism to form naturally. The only ones found have been the simpler amino acids. Also, the 4 critical nucleotide amino acids, C, G, A, T, do not form naturally, are not homochiral, nor in the right proportions.


The geo/hydrothermal vent conjecture is nonsensical. These are open systems, susceptible to currents, mineral contamination, salinity, ph, and temperature, making them a totally unacceptable environment for the precise and exact placement of elements to assemble to form life.

3 0
2 years ago
A cross between a plant with red flowers (R = dominant) and a plant with white flowers (r = recessive) yielded 47 plants with re
fredd [130]

Answer:

A. The results are close to a 1:1 ratio of plants with red flowers to plants with white flowers. Therefore, the genotypes of the parents are Rr and rr.

Explanation:

I took the test and got it right.

3 0
2 years ago
Genetic and chemical modifications are often performed on antimicrobial drugs. Which of the following statements explains the ad
kiruha [24]

Answer:

A. Chemical modification may allow for extended drug capacities such as expanded spectrum of activity and increased stability.

Explanation:

Any modification in antibiotic structure and chemical will affects its ability in a way to increase it capability of target microbes and act efficiently. These modification can increase half life and stability of the drug.  

8 0
2 years ago
What are large and smaller slabs of rock in the lithosphere called?
AnnZ [28]
B is the answer!!!!!!!
3 0
3 years ago
Based on fossilized evidence, there are scientific claims made about the evolution of certain species. If a scientist studying t
Eva8 [605]

Answer: For the scientist to have alternative hypothesis considered, it is imperative he takes certain steps, this steps will ascertain the scientific claims already made about the evolution of species.

Therefore,the scientist will simply test the alternative hypotheses inorder to know that they are incorrect.

This testing of hypotheses to ascertain their incorrectness is very useful in the study of fossils.

6 0
3 years ago
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