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

 From the tiniest (12)_________ to the mightiest redwoods, the interconnectedness of life shapes our planet's future.  Join us in discovering these amazing connections that make Earth a living, breathing superorganism! Question 7:A. team up with B. branch off with C. break down with D. grow out with Question 8:A. corridors B. hotspots C. sanctuaries D. reserves Question 9:A. In spite of B. In view of C. With regard to D. In accordance with Question 10:A. variety B. handful C. multitude D. bunch Question 11:A. the others B. other C. another D. others Question 12:A. insects B. seedlings C. bacteria D. microorganisms Mark the letter A, B, C or D on your answer sheet to indicate the best arrangement of utterances or sentences to make a meaningful exchange or text in each of the following questions from 13 to 17. Question 13: a. Maya: No, please feel free to sit. I'm just finishing my coffee. b. Alex: Excuse me, is this seat taken? c. Alex: Thanks! That's an interesting coffee mug you have there. A. a-c-b B. c-b-a D. a-b-c D. b-a-c Question 14: a. Mrs. Reed: I meant musical scales... b. Mrs. Reed: Yes, welcome! Before we start, do you have any experience with scales? c. Tom: Oh yes, I used to have a pet lizard! d. Tom: Hi, I'm here for my first piano lesson. Are you Mrs. Reed? e. Tom: Oh! No, not really. A. d-b-c-a-e B. a-b-c-d-e C. d-c-e-b-a D. c-e-b-a-d Question 15: Dear Professor Chen, a. Just last week, our team discovered an extraordinary network of mycorrhizal fungi connecting over twenty different tree species across our study site. It's remarkable how these invisible threads facilitate nutrient exchange and communication between plants that appear isolated above ground. b. The way these microorganisms maintain the delicate balance of our ecosystem reminds me of your favorite saying: "Nature's smallest engineers build the strongest foundations." c. I would be honored if you could review our preliminary findings. Your expertise in microbial ecology would be invaluable as we prepare our paper for publication. d. I hope this letter finds you well. I'm writing to share some fascinating discoveries from my research on soil microbiomes here in the Amazon rainforest. Your lectures on ecosystem interconnectedness have taken on new meaning as I observe the intricate ways these microscopic life forms weave through our forest systems. e. The implications for ecosystem conservation are more significant than we initially anticipated.
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