Through the actions of alleles
<u>Answer:</u>
<em>A law is a statement of fact but a theory is an explanation.
</em>
<u>Explanation:</u>
<em>A law is in general a universally accepted fact.</em> It remains true and the same in any part of the world it takes several years of experimentation to develop a law.
<em>A law is a statement that cannot be challenged at the present point of time with all its technological advancements.</em> A theory is different from a law. It is an explanation of facts.
<em>Most acceptable one among several explanations becomes a theory. A theory doesn’t have a universal nature like that of a fact. </em>
Answer:
II. Pulmonary edema occurs when interstitial fluid accumulates in tissues of the lung
Explanation:
Pulmonary edema is a condition that occurs when excess of fluid filled in the numerous air sacs in the lungs, making it difficult to breathe.
Symptoms of pulmonary edema include wheezing, extreme shortness of breath, Cold, clammy skin, feeling of suffocating or drowning , Anxiety, and restlessness or a sense of apprehension.
Treatment for pulmonary edema depends on the cause and generally include supplemental oxygen and medications.
Hence, the correct option is II. Pulmonary edema occurs when interstitial fluid accumulates in tissues of the lung.
Answer:
A new mutation
Explanation:
A mutation refers to the random changes in the DNA of organisms. A mutation changes the allele and genotype frequencies by the introduction of a new allele in the gene pool.
However, mutations are not the major factor responsible for changes in the gene pool of a population as mutations are rare. The rate of mutations is very slow and does not allow it to serve as a major factor to change the allele and genotype frequencies.
Answer:
The false statement is e. It is found only in gram-negative bacteria.
Explanation:
Drug resistance is a condition that is usually developed in bacteria because of the wrong use of medicines. This condition can cause a mutation and can be transferred with horizontal gene exchange, that does not require breed and it can happen between two grown bacteria. As it happens in all species of bacteria, therefore it's not only found in gram-negatives.
