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mariarad [96]
3 years ago
12

Energy efficiency is based on the laws of thermodynamics; therefore, a loss of energy always occurs when one form is transformed

into another.
Biology
1 answer:
Elis [28]3 years ago
3 0
True since some of the input energy is turned into heat energy, which is then lost in the environment. This is why input work is never equal to output work, unless the problem is set in a 'perfect world'.

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Which of the following statements correctly describes the effect a nonsense mutation would have on a gene?a) It changes an amino
TEA [102]

Answer:

c) It introduces a premature stop codon into the mRNA

Explanation:

Nonsense mutation is a type of point mutation (single nucleotide base is changed) which leads to premature stop codon. Stop codons are also called nonsense codons and that is way this type of mutation is called nonsense mutation. As a consequence, synthesized protein is incomplete and shorter than it should be (truncated protein), usually nonfunctional.

3 0
3 years ago
Over successive generations, moths develop spots that resemble eyes on their wings that scare off predators. this characteristic
Sati [7]
In this example of evolutionary development, we can see a selective advantage.
Developing of new characteristics, in this case, the spots on moth's wings is a part of the process of adaptation of organisms to their environment.
The new characteristics are acquired through mutations and natural selection filters the ones that are the most beneficial for the holder.
For example, a  mutation which results in moths having shorter wings is disadvantageous, because it makes the individual who possesses it less likely to survive and reproduce.
On the other hand, developing of spots that resemble eyes can be advantageous, since it enables the holder of the trait to be more successful and more likely to leave offspring.

5 0
3 years ago
What are all the possible sources of genetic variation in sexuaally repdoucing organisms?
Allushta [10]

Answer:

Mutation, Gene flow/Migration/Immigration of gene and Recombination

Explanation:

For any species there are majorly three sources of genetic variations –  

a) Mutation – This leads to change in the genetic code with in the DNA of an organism. Sometimes mutation does not produce any effect on the organism. Mutation can produce both positive and negative impact. Its effect is observed in long run as its rate is slow.

b) Recombination – When an organism undergoes sex, his/her genes recombine with the genes of mating partner. The rate of recombination is faster than the rate of mutation  

c) Gene flow /Migration/Immigration of gene – In this gene travel from one set of population to the other. The frequency of gene in the mixed population lies between the original population gene frequency and the migrated or donor population gene frequency

7 0
3 years ago
7. Which of the following elements is LEAST likely to be found in sugar molecules
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Answer:

sulfer

Explanation:

7 0
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What moon phase causes the highest tides
Y_Kistochka [10]

Answer:

new moon and fullmoon

Explanation:

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