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dexar [7]
2 years ago
15

Why are house keys usually made of metal rather than glass, wood, or fabric

Biology
1 answer:
valina [46]2 years ago
5 0

Answer:

because if not metal than other things like glass wood or fabric would break or not be suitable for the key hole.

Explanation:

flip flops are made of plastic.

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I believe the answer to your question is c
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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
Achondroplastic dwarfism is a dominant genetic trait that causes severe malformation of the skeleton. Homozygotes for this condi
ludmilkaskok [199]

Answer:

D

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Matthew is not expressing the trait because he must be carrying the recessive gene of Achondroplastic dwarfism compared to Jane who is a dwarf with the genotype Aa

6 0
3 years ago
Which statement accurately describes the role of key organelles in energy transfer?
miss Akunina [59]

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Energy is captured and stored in the mitochondria and released in the chloroplast.

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SORRY I THINK

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The diagram shows a process taking place between molecules X and Y that provides energy to cells.
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They are ATP and ADP. ....

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