www.bbcnoun.com.ng BIO304 9/10 The ______ can be inverted as in the oceans where a given mass of phytoplankton at certain times in the year support a larger mass of zooplankton. pyramids of biomass The explosively growing population is placing considerable stress on the environment to the extent of being harmful to -------------. organisms ______ are climatically and geographically defined areas of ecologically similar characteristic appearance of communities of plants, animals and soil organisms Biomes Each level of feeding is called a ______ level with the plant producers forming the first level. trophic The species______ of a community is influenced by its age, its primary productivity, the form of the organisms present and their competitive ability. richness The______ features help to describe the overall form of communities which is usually determined by vegetation in terrestrial communities. abiotic ______are climatically and geographically defined areas of ecologically similar characteristic appearance of communities of plants, animals and soil organisms Biomes Among the challenges to the environment posed by human activities are releases of harmful materials into the environment found responsible for causing -------- All of the options ______Occur in humid tropical climates with a clear dry season during which period trees lose their leaves. tropical rainforests Tropical rainforest, temperate rainforest, savannah, temperate grassland, Hot and Cold deserts etc are examples of ------------ Terrestrial Ecosystems