Title UNIT 10 THE ECOSYSTEM GRADE 11 TEST 1.docx ✅

organic matter and release essential nutrients, and these nutrients are then absorbed by plant roots through complex chemical processes. Coral reefs, known as the rainforests of the sea, (20)_________. The great whales, diving deep into oceanic depths and returning to surface waters, help circulate vital nutrients throughout marine ecosystems, creating blooms of phytoplankton that sustain countless marine species. Rivers carve through landscapes, carrying sediments and minerals downstream, and these materials eventually enrich coastal ecosystems. Migratory birds, following ancient pathways across continents, connect distant ecosystems through their seasonal journeys. (21)_________, ensuring no single species dominates an ecosystem. From the smallest soil bacteria to the largest land mammals, each organism plays its unique role in this grand orchestra of life. (22)_________, while the changing seasons orchestrate nature's annual patterns. Question 18: A. where bees methodically gather nectar while inadvertently spreading pollen B. bees have methodically gathered nectar while inadvertently spreading pollen C. which bees methodically gather nectar while inadvertently spreading pollen D. bees will methodically gather nectar while inadvertently spreading pollen Question 19: A. which the global climate would have been severely disrupted, leading to catastrophic consequences B. the global climate would have been severely disrupted, leading to catastrophic consequences C. that the global climate would have been severely disrupted, leading to catastrophic consequences D. having disrupting the global climate severely, leading to catastrophic consequences Question 20: A. providing essential shelter and sustenance for countless marine species B. provide essential shelter and sustenance for countless marine species C. having provided essential shelter and sustenance for countless marine species D. provided essential shelter and sustenance for countless marine species Question 21: A. The dangerous web of predator-prey conflicts destroys forest resources B. The complex chain of animal migrations controls weather patterns C. The natural flow of river systems shapes predator behavior D. The intricate web of predator-prey relationships maintains population balance Question 22: A. The remarkable synchronization of ocean currents determines planetary rotation B. The remarkable synchronization of volcanic activity controls plant growth C. The remarkable synchronization of day and night cycles influences countless biological rhythms D. The remarkable synchronization of wind patterns shapes continental drift