Answer:
D. are usually sessile, have tentacles, mouths open upward
Explanation:
B. Because of the presence of hydrogen sulphide in Brass, it combines with oxygen in air and form water, evaporates. So remained sulphide is colourless in air .So Brass gets discoloured in the air.
Biotic homogenization is <span>the gradual replacement of regionally distinct ecological communities with cosmopolitan communities that reflect increasing global activity of humans</span>
Some of the key terms in community ecology are Intraspecific Interaction, interspecific interaction, competitive exclusion, mutualism.
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What is community ecology?</h3>
- Community ecology aims to provide solutions to these and other community-related concerns.
- An ecological community is a collection of organisms that coexist or may coexist in a given area. Communities are connected by a shared environment and a web of relationships between the many species.
- An ever-expanding and comprehensive area of ecology is community ecology. Ecologists look at the variables that affect species distribution, community structure, and biodiversity. Interactions with the abiotic environment and the wide variety of interactions that take place between species are two examples of these elements.
- The foundation of the majority of community ecology study is species interactions, such as competition, predation, herbivory, parasitism, and mutualism.
To learn more about community ecology with the given link
brainly.com/question/12989124
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1) full, 2) new, 3) gibbous
