TERM: Description of glossary term.
Fish related glossary
obligatory
The animal has no option. Contrast with facultative.
参考文献
Barlow, George. 2002. "The Cichlid Fishes (Nature's Grand Experiment in Evolution)". Perseus Publishing. 352 - (ffm03927)
TERM: Description of glossary term.
Fish related glossary
The animal has no option. Contrast with facultative.
Barlow, George. 2002. "The Cichlid Fishes (Nature's Grand Experiment in Evolution)". Perseus Publishing. 352 - (ffm03927)