Answer:
C- Bacteria become more resistant to antibiotics that are used to treat bacterial infections.
Explanation:
Selective breeding involves humans breeding plants and animals by choosing which animal or plant males and females will sexually reproduce and have offspring together. This is usually done to achieve a particular favorable phenotypic trait in the new offspring.
Bacteria become more resistant to antibiotics that are used to treat bacterial infections doesn’t undergo any selective breeding process by humans which makes it the right answer.
T<span>he least likely to be a source of genetic variation among living organisms is D. asexual reproduction. Asexual reproduction is a kind of reproduction that does not include fertilization process of two gametes: female and male but only includes parts of plants or cells. In this case, variation is minimized</span>
Explanation:
Fixed sample size:
In this fixed sample size the data is studied and checked in order to find a relationship. The benefits it is easy to produce, and with it less reliable outcomes can be given.
Sequential procedures:
→Sequential procedures helps while we are collecting the data.
→At an interim analysis, data collection can be stopped whenever the results are convincing enough to conclude an effect is present.
→Or otherwise the more data can be collected, or if needed the study can be terminated whenever it is extremely unlikely the predicted effect will be observed if data collection would be continued.
→In this two or more blocks of different sizes are prepared for testing.
→Pros being it provides better results and is less time taking, as we can stop once the relation is seen, con being it is difficult to perform.
Answer:
22. is a
23. is b
Explanation:
carbohydrates are made up of carbon, hydrogen, and oxygen
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