The ecological niche of a species refers to:
A: Position of the organism in the food web
B: Role in the community and all associated biotic and abiotic factors
C: Mode of reproduction and food habits
D: Behavior in relation to other species in the community
A: Position of the organism in the food web
B: Role in the community and all associated biotic and abiotic factors
C: Mode of reproduction and food habits
D: Behavior in relation to other species in the community
举一反三
- Invasive species are defined as A: a species not native to an area that spreads and causes damage to the area B: species suited to stable environments that produce a few, relatively large offspring and provide parental care C: species suited to changing environments that produce many offspring and provide little or no parental care D: species whose presence is key to maintaining biodiversity in an ecosystem and to upholding an ecological community’s structure
- There is every possibility that many species (物种) of animals will die out because of their disappearing food ________. A: mode B: source C: pattern D: foundation
- 21.<br/>What reason does the professor give for the difference in marmot<br/>behavior patterns? () A: Type of food available B: The size of the population C: Interaction with other marmot species D: Adaptations to the climate
- The conclusion seems to be that we ______. A: could make use of more natural species B: don't cultivate the right kind of food C: produce more food than we need D: cultivate too many different species
- ecological niches and their resident species