种(species)
The quick-growing exotic tree species are replanted in the deforested land because they can help prevent soil erosion.
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种(species):
The skulls and pelvic bones of some species of dinosaur share characteristics with the skulls and pelvic bones of all modern birds. Even though not all dinosaurs have these characteristics, there are scientists who claim that all animals that do have these characteristics are dinosaurs.
If the statements above and the claim of the scientists are true, which of the following must also be true?
In order to limit the introduction of alien species by ship,()was adopted on 13 Feb, 2004 at the IMO.
In order to limit the introduction of alien species by ship,()was adopted on 13 Feb, 2004 at the IMO.
Why does the author say that “these species of fungi seem rather strange”?
The quick-growing exotic tree species are replanted in the deforested land because they can help prevent soil erosion.
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偶见种(rare species)
优势种(dominant species)