Tiêu đề UNIT 10 THE ECOSYSTEM GRADE 11 TEST 1.docx ✅

UNIT 10 THE ECOSYSTEM GRADE 11 TEST 1 Read the following advertisement and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 1 to 6. Your Place in Earth's Perfect Balance  Silently yet powerfully, nature orchestrates life's endless dance, while gracefully and mysteriously, the seasons paint their eternal masterpiece. Ancient forest wisdom guides our path, while (1)_________ carve their story and gentle ocean whispers share their secrets. The resources preserved by Earth sustain all living beings, while the energy captured by plants powers life's grand cycle, and the balance (2)_________ by ecosystems ensures our future. Our actions bring consequences to the ecosystem, while nature sends messages (3)_________ humanity, and the wind carries hope to distant lands. When Mother Earth (4)_________ all her ducks in a row, our ecosystem stands strong, but treat it like a house of cards and we'll be skating on thin ice—that's why going against (5)_________ is always barking up the wrong tree. (6)_________ in harmony with nature ensures our survival, while protecting our environment becomes our sacred duty, and learning to coexist remains our greatest challenge. Question 1:A. streams precious mountain B. mountain streams precious C. precious mountain streams D. streams mountain precious Question 2:A. which maintained B. maintaining C. was maintained D. maintained Question 3:A. for B. to C. at D. with Question 4:A. gets B. brings C. takes D. hands Question 5:A. natural B. nature C. naturally D. natureness Question 6:A. To living B. Live C. Living D. To live Read of the following leaflet and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 7 to 12. Your Guide to Earth's Living Connections  Welcome to a world where every creature, plant, and microorganism is connected in ways both visible and invisible!  While some animals prefer solitude, others thrive in complex social networks, creating fascinating communities in the wild. Trees (7)_________ fungi to branch out their nutrient-sharing networks beneath the forest floor. The biodiversity (8)_________ serve as nature's laboratories of evolution. (9)_________ nature's laws, every species plays a vital role in maintaining ecosystem balance. The symbiosis between different organisms creates an intricate web of life. A (10)_________ of species depend on each other in this delicate dance of survival.  In the rainforest canopy, (11)_________ network flourishes as pollinators connect countless flowering plants. The ecosystem carries on with its complex interactions, where predators check up on prey populations.

Best regards, LK A. a-b-c-d-e B. d-a-b-c-e C. b-a-d-c-e D. c-d-e-a-b Question 16: a. However, habitat loss, pollution, and climate change threaten this natural harmony. As species disappear, the symphony loses vital instruments, weakening ecosystem stability. b. In nature's grand symphony, biodiversity conducts an intricate dance of life, where each species plays a vital role in maintaining ecological harmony. Like musicians in an orchestra, plants, animals, and microorganisms work in perfect coordination. c. We must act as stewards of this biological orchestra, protecting and preserving biodiversity. Our survival depends on maintaining nature's carefully composed symphony of life. d. This delicate balance enables essential processes like pollination, seed dispersal, and nutrient cycling to flourish. When species interact, they create resilient ecosystems that can better withstand environmental challenges. e. Healthy biodiversity provides crucial services - from clean water and air to food security and medicine. These interconnected systems support all life on Earth, including humans. A. d-e-b-a-c B. e-d-a-b-c C. b-d-e-a-c D. a-b-e-d-c Question 17: a. Within the earth, ancient seed banks lie dormant, waiting for optimal conditions. Tree rings and sediment layers chronicle historical climate patterns and environmental changes. b. This biological memory enables ecosystems to respond to environmental changes, drawing upon stored knowledge to maintain resilience through challenging times. c. Ecosystems function as living time capsules, storing centuries of environmental information in their soil, seeds, and species. Each element preserves crucial data about past conditions and adaptations. d. Understanding these natural archives is crucial as we face climate change. Nature's time capsule holds valuable lessons for survival and adaptation. e. Species carry genetic memories of past challenges, their DNA evolving through generations. These adaptations reflect successful survival strategies refined over millennia. A. c-a-e-b-d B. c-d-e-a-b C. c-e-b-a-d D. c-b-a-d-e Read the following passage about The Intricate Harmony of Natural Systems and mark the letter A, B, C or D on your answer sheet to indicate the option that best fits each of the numbered blanks from 18 to 22. In the grand tapestry of nature, countless systems work in perfect synchronization, creating a masterpiece of biological harmony. The delicate dance of pollination, (18)_________, demonstrates nature's brilliant efficiency in maintaining plant populations. The Amazon rainforest, which serves as Earth's vital respiratory system, continuously cycles carbon dioxide into oxygen through its dense canopy of vegetation. Had this crucial ecosystem been destroyed, (19)_________. Microscopic fungi in the soil decompose
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