Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance (sampling error).
Genetic drift occurs in all populations of non-infinite size, but its effects are strongest in small populations.
Genetic drift can have major effects when a population is sharply reduced in size by a natural disaster (bottleneck effect) or when a small group splits off from the main population to found a colony (founder effect).
Answer:
Formal operations
Explanation:
During formal operational stage adolescents<em> gain the ability of abstract thinking and its application, they can manipulate ideas in their heads without any dependance, they also begin to think creatively and can do mathematical calculations.</em>
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Before believing a claim that a particular nutrient decreases one's risk of cancer, one should <u>determine whether it is supported by major </u><u>public health organizations.</u>
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- Information about health can be very helpful in enabling us to make crucial health decisions. Health information can, however, often be perplexing and overwhelming.
- Health experts, insurance and pharmaceutical firms, families and friends, the media, instructional materials, commercials, and the internet, including social media, are just a few of the many sources from which people seek, exchange, and receive health information.
- Reliable internet medical sites give general, public health organizations understandable details about symptoms, available treatments, and typical results.
- When properly utilized, online research can assist you in proactively identifying a health issue, treating it without a prescription, and equipping you to make wise decisions regarding your health.
learn more about public health organizations here: brainly.com/question/1543036
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Answer:
D) bacteria
Explanation:
Antibiotics can kill certain bacteria, but sometimes it's better to just let the bacteria run its course and let it die out on its own. It should be noted, that with our mass usage of antibiotics, certain bacterias have developed a resistance against antibiotics and that is not good at all.
I believe marijuana is the most common illegal drug found in the United States.
