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Nonnative invasive species are often a threat to native species because they
a. typically grow larger than other plants.
b. are not susceptible to any diseases.
c. are
d. do not have natural enemies in their new location.
Introduction:
The invasive species can be defined as the plant, animal or fungus that is not the natural habitat of a specific location; however, they are introduced and spread to a greater extent. This greater expansion leads to damage to the environment and a threat to the native species.
Answer to Problem 1U
Correct answer:
The non-native invasive species do not have enemies in their new location and this account for threat to the native species. Therefore, option d. is correct.
Explanation of Solution
Reason for the correct statement:
The non-native invasive species poses more threat to the invasive species because the native species have natural attackers and enemies. The non-native invasive species are new to the location and hence, there is no threat of attackers for them. They possess a more risk because they lack natural predators in the new location.
Option d. is given as “do not have natural enemies in their new location”.
As, “the non-native invasive plants do not have any natural predators in their new environment, they possess a threat to the native species”, is the right answer.
Hence, option d. is correct.
Reasons for the incorrect statements:
Option a. is given as “typically grow larger than other plants”.
The size of the non-native invasive species does not possess a threat to the native species. So, it is a wrong answer.
Option b. is given as “are not susceptible to any diseases”.
The non native invasive species are the normal living organisms and they suffer from diseases. So, it is a wrong answer.
Option c. is given as “are parasitic”.
The non-native invasive species are not parasitic rather most of them are free-living. So, it is a wrong answer.
Hence, options a., b., and c. are incorrect.
The non-native invasive species are the plants, animals or fungus, which are introduced into a new environment and they are not the natural inhabitants of that location. They lack natural enemies in their new environment and hence, their growth rate are very high.
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Chapter 39 Solutions
EBK BIOLOGY
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Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College