One very large problem in dealing with introduced fish is the inability of many fishery biologists and managers to identify native fishes in their jurisdictions, recognize introduced species, and appreciate the management problems that might result. Proper management cannot be done by those who have ...
If a new species is introduced into an ecosystem, what could happen? A. The ecosystem will always be better. B. The ecosystem will always be worse. C. It might disrupt the ecological balance. D. Nothing will change. 相关知识点:
Are there any endangered species in Georgia? What is a currrent keystone species? How can we get rid of invasive species? Are starlings an invasive species? Is kudzu an invasive species? How are invasive species introduced? Is the goldfinch an invasive species? Where are invasive species most ...
How many animals have gone extinct in the last 100 years? What animals are native to Australia? What is a wildlife refuge? What animals are native to Antarctica? What do animals eat in a temperate forest? What are the classifications of animals according to habitat?
Aninvasive speciesis a non-native organism that causes ecological harm after being introduced to a new environment. Humans are responsible for the spread of a majority of earth's invasive species, often carrying them to different parts of the world on ships. Once they enter a new ecosystem, ...
11. What position is the man interested in? A. Window cleaner. B. Shop assistant. C. Fitness coach. 12. What will be provided for the job? A. A company car. B. A smartphone. C. A video recorder. 13. What is needed to do the job?
differentfromcriticism.Whenaddressinganissue,focusonsuggestionsyoucanmaketohelp anotherpersonimprove,whichismoreeffectivethancriticizing. ·Askforwhatyouwantdirectly.Inefficientcommunicationoftenresultsinheavycriticism. 5 Makesuretoaskforwhatyouwantinadirect,respectfulmanner.Thiswilleliminate(消 除)theneedforcriticism...
AclassicexampleofaninvasivespeciesisthecanetoadBufomarinus. AnativetoCentralandnorthernSouthAmerica,thisspecieswasintroducedontomyriadsugar-producingislandsaroundtheworld,includingAustraliain1935,asa“biocontrol”forthesugarcanebeetle,whoselarvaeweredestroyingsugarcanecrops. TheplaninAustraliaandelsewherewasforthetoadsto...
Now, for many years archaeologists have speculated that agriculture also arose independently in another center, too--New Guinea, which is just north of Australia, in the South Pacific Ocean. 考古学家多年来一直推测农业也独立出现在另一个中心,New Guinea(新几内亚)。它位于南太平洋,在澳大利亚北部。
Explain what the term "non-native species" means and why it is such a problem in an ecosystem. Discuss two areas where the introduction of a non-native organism has created problems for the ecosystem. What was the organism, wh...