Introducing exotic species into new areas will:
i) increase competition for food & space.
ii) introduce diseases
iii) improve habitat
iv) lead to extinction of native species
a)
only iv is correct.
b)
only ii, iii & iv are correct.
c)
only i, ii & iv are correct.
d)
all the above are correct.
Correct answer is option 'C'. Can you explain this answer?

Question

Introducing exotic species into new areas will:
i) increase competition for food & space.
ii) introduce diseases
iii) improve habitat
iv) lead to extinction of native species

a)
only iv is correct.
b)
only ii, iii & iv are correct.
c)
only i, ii & iv are correct.
d)
all the above are correct.

Correct answer is option 'C'. Can you explain this answer?

Answer

The impacts of introducing a non-native or invasive species to an ecosystem will vary depending on a number of factors.

In some instances, the introduced species may not survive. If there is no ecological niche for the species to fill or the species cannot adapt to fill a different ecological niche, the species will likely go extinct relatively quickly at the local level.

However, if the species is a generalist, or a species able to thrive in a variety of environments and consume many food sources, that species will likely do well. If the ecosystem has reached its stable state, this means that the invasive species will have to replace a native species. No two species can share the same ecological niche, thus one will be better adapted and survive. If the invasive species is better adapted, it will out compete the native species.

If the species reproduces quickly, it is also more likely to thrive in a new ecosystem. If it can reproduce and grow faster than its competitor, it will eventually out compete that species.

Typically, invasive species harm an ecosystem. For example, the Burmese python is found in the US but it isn't supposed to be here. These snakes were likely released by humans and were pets at one time. The environment is suitable for them and they have adapted to the area.

Introducing a new species can also introduce any diseases that species has. These new diseases can spread to other native species and negatively affect them.

Introducing exotic species into new areas will:
i) increase competition for food & space.
ii) introduce diseases
iii) improve habitat
iv) lead to extinction of native species

Answer

When a species comes from another place.. it's started to fight for food with other species which r already there. Sometimes it's called deases to the other species. ND for these two reasons ND some others the spices numbers which r already there, decreases. ND it's not improve the habitat at all. so 1,2,4 r correct but 3is rong

Answer

Introducing exotic species into new areas can have various impacts on the ecosystem. Let's examine each statement to understand the effects of introducing exotic species:

i) Increase competition for food and space:
- When exotic species are introduced into a new area, they may compete with native species for resources such as food and space.
- Exotic species often have no natural predators or competitors in their new environment, which can give them a competitive advantage over native species.
- This increased competition can lead to a decrease in resources available for native species, potentially impacting their survival and population numbers.

ii) Introduce diseases:
- Exotic species can introduce new diseases or parasites to the native species in the area they are introduced to.
- These diseases may have devastating effects on native species that have not evolved defenses against them.
- The introduction of diseases can lead to declines in native species populations and even local extinctions.

iii) Improve habitat:
- In some cases, exotic species may actually improve the habitat they are introduced to.
- For example, certain plants may provide better cover or food sources for native species.
- However, these instances are relatively rare compared to the negative impacts exotic species can have on the ecosystem.

iv) Lead to extinction of native species:
- The introduction of exotic species can pose a significant threat to native species, potentially leading to their extinction.
- Exotic species may outcompete native species for resources, prey on them directly, or introduce new diseases that native species are not equipped to handle.
- Over time, these pressures can result in the decline and eventual loss of native species.

In conclusion, all the given statements (i, ii, and iv) are correct regarding the impacts of introducing exotic species into new areas. They highlight the negative consequences such introductions can have on the ecosystem, including increased competition, disease introduction, and the potential extinction of native species. Therefore, the correct answer is option 'C'.

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