Title 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.
 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.

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