ecological niches and their resident species
举一反三
- 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
- 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
- What are the hazards of alien species invasion? A: Causes sterility of other plants B: Causes economic losses C: Causes ecological disasters D: Causes social unrest
- resident
- ecological reserve