Answer:
C.) By performing a controlled experiment
Explanation:
Edge 2021
The internet acts as an amplifier of existing attitudes by facilitating the formation of echo chambers and filter bubbles.
Echo Chambers: Online platforms often expose users to content that reinforces their existing viewpoints. If someone holds particular opinions, the algorithms may prioritize content that supports those opinions, creating an echo chamber where individuals are surrounded by like-minded perspectives.
Filter Bubbles: Algorithms personalize content based on user preferences, limiting exposure to diverse perspectives. This can create a filter bubble where individuals are shielded from information that challenges their existing attitudes, further reinforcing their beliefs.
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b. herbicides
c. net barriers
d. inspecti
Answer:
C) net barriers
Explanation:
Both A and B are forms of chemical control and D, inspections, is a tool used to determine what type of control is needed. A is one form of mechanical control.
A: When an invasive species first becomes introduced into a new area, there may be a chance to eradicate it through a rapid response action if it is detected in time. If eradication is not possible, then the species may be subject to control and management efforts. Regardless of whether the goal is eradication or control/management, there are a suite of different options, which differ depending on the species, which one must consider. When making decisions on which options to use, one must use an Integrated Pest Management approach to choose the options which will be the most environmentally sound yet still affect the invasive species as strongly as possible. The various options for eradication/control/management include:
Physical or Mechanical Control - This type of control involves physically removing the invasive species (i.e. harvesting) or using barriers or traps to prevent their spread or to capture them. For invasive plants, mowing is another example of physical control.
Chemical Control - This type of control involves all sorts of pesticides (herbicides, insecticides, fungicides, piscicides, etc.) Although chemical use can be very effective, they can be very dangerous to other species or to the ecosystem in general and must be used in an environmentally sound manner. The key is to choose chemicals that are low-risk yet effective and that can be applied when the pest is at its most vulnerable.
Cultural Management - Cultural management is the manipulation of the habitat in ways that increase the mortality of the invasive species or reduce its rates of increase and damage. Cultural management that can affect invasive species including: selection of pest resistant varieties of crops, mulching, winter cover crops, changing planting dates to minimize insect impact, burning, flooding, crop rotations that include non-susceptible crops, moisture management, addition of beneficial insect habitat, or other habitat alterations that help the native species compete better against the invasive ones.
Biological Controls - This type of control is the purposeful use of an invasive species’ enemies (predators, parasites, and pathogens) – in other words other exotic species – to reduce the invasive species populations. This option involves much research and testing to be sure the species to be used preys only on the target invasive species.
US Fish and Wildlife F&Q
Answer: The correct answer is second and third statement.
Explanation:
The second and third statement are examples of the concerns expressed by opponents of the use genetically modified food crops. The second statement is related with the fear of the farmers during the harvest stage, because they consider that new genes can reach their crops, from the GM crops. The third statement is related to the fear of the some "naturalists" people who express that the protein products can lead to allergic reactions, however GM food crops have been tested regorously, and there is no evidence of any kind of allergic reaction.
Opponents of genetically modified (GM) food crops express concerns including potential allergic reactions in human consumers, the passing of new genes to wild relatives, and the possible incorporation of these new genes into human consumers' DNA.
Concerns expressed by opponents of the use of genetically modified (GM) food crops include the possibility of GM food crops passing their new genes to human consumers, the potential for GM food crops to pass their new genes to close relatives in nearby wild areas, and the risk that the protein products of transgenes in GM food crops might lead to allergic reactions in human consumers.
GM plants, also known as transgenic plants, are created by inserting DNA from one species into another species to introduce desirable traits. However, the introduction of these foreign genes presents risks including ecological instability due to the potential spread of these genes to other species in the environment. Additionally, the artificial DNA in these foods could potentially trigger allergic reactions in some individuals due to the protein products of these genes.
Further, the concern that GM food crops might pass their new genes to wild relatives stems from the possibility that this could upset the balance of ecosystems and lead to loss of biodiversity. Lastly, the worry that GM food crops might pass their new genes to human consumers may arise from a lack of understanding of the genetic modification process, as genes from food are not typically incorporated into our own DNA during digestion.
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