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UNIT 10 THE ECOSYSTEM GRADE 11 TEST 3 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. Discover Your Living Legacy  In this grand tapestry of existence, watch as your stories legacy their way through the corridors of time, transforming hearts and minds with each passing moment!  (1)_________ illuminate the sacred paths where past and future converge in harmonious dance. The memories (2)_________ in digital amber shine like beacons, guiding generations yet unborn toward their destiny. Present your precious life chapters (3)_________ tomorrow's visionaries, inspiring them to reach beyond the stars. Life is not about waiting for the storm to pass but learning to dance in the rain of (4)_________ possibilities. Creating timeless narratives empowers us to transcend the boundaries of mortality, (5)_________ our essence into the very fabric of existence itself.  Let your legacy echo through the ages, for in the grand (6)_________ of life, every soul contributes its unique melody to the eternal song of humanity. Question 1:A. Wisdom eternal keepers B. Keepers wisdom eternal C. Eternal wisdom keepers D. Wisdom keepers eternal Question 2:A. was etched B. etching C. which etched D. etched Question 3:A. to B. in C. for D. at Question 4:A. limited B. endless C. new D. uncertain Question 5:A. weave B. to weaving C. to weave D. weaving Question 6:A. symphony B. symphonic C. symphoness D. symphonyly 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. Discover Your Role in Earth's Balance  While some species thrive in the forest, (7)_________ make their home in wetlands, creating Earth's beautiful biodiversity. Each creature plays a unique part in nature's grand design, from the smallest insect to the largest mammal. Nature's delicate balance depends on how we (8)_________ to protect our environment. Every small action counts—from reducing plastic use to planting trees, we can all contribute to a healthier planet. The ecosystem's resilience shows nature's remarkable (9)_________ to heal itself, but it needs time and protection to recover from environmental damage. This natural strength is both inspiring and fragile. (10)_________ nature's laws, every living being plays a vital role in maintaining harmony. From (11)_________ to predation, these intricate relationships keep our world in perfect balance. The biodiversity of our planet serves as the foundation of all life, supporting countless species and ensuring ecological stability for future generations. Without it, our very survival would be at
risk. (12)_________ of Earth's resources depend on our responsible stewardship, and the time to act is now.  Join us in protecting our precious planet—every action matters, every person counts, and together we can make a difference.  Take action today—our planet's future depends on it! Question 7:A. others B. another C. the others D. other Question 8:A. give in B. pitch in C. hold out D. step up Question 9:A. ability B. tendency C. capacity D. power Question 10:A. According to B. In accordance with C. On account of D. By virtue of Question 11:A. symbiosis B. competition C. pollination D. migration Question 12:A. Many B. Most C. Some D. Plenty 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. Sarah: Walking? But isn't that like... an hour each way? b. Sarah: Hey Tom! Haven't seen you in ages. Still, taking the 7 AM bus? c. Tom: Actually, I've been walking to work lately. Started last month when my phone died one morning. A. c-b-a B. c-a-b C. a-b-c D. b-c-a Question 14: a. Rose: Sometimes it's not about following rules. These little ones, they tell you what they need. See these yellow leaves? They're saying, "too much water." Just like people - you have to learn to listen. b. Emma: Grandma, these tomato plants you gave me last month... I think I killed them. c. Emma: I wish everything came as naturally to me as gardening does to you. d. Emma: But I followed all your instructions! Water them daily, and keep them in sunlight... e. Rose: Oh sweetie, they're not dead. Just need some attention. Like most things in life. A. a-b-c-d-e B. b-e-d-a-c C. e-a-b-d-c D. b-a-d-c-e Question 15: Dear Sarah, a. Your observation about the unique mix of species at the boundary – with both woodland and grassland species coexisting in that narrow strip – is particularly fascinating. It reminds me of my early research in the Amazon, where we found similar patterns at forest fragment edges, though at a much different scale. b. Your description of the increased bird diversity in these transition zones perfectly illustrates what we discussed during your graduate studies about the "edge effect" phenomenon. c. I'm especially intrigued by your note about the butterfly species that seem to thrive exclusively in these edge zones. This could be a valuable contribution to our understanding of how habitat boundaries can create their own distinct ecological niches. Perhaps we could collaborate on a paper about this?

over millions of years, help regulate population sizes and preserve ecological stability. Should this delicate balance be disrupted, entire ecosystems would collapse, leading to catastrophic consequences for all life forms involved. Many species (19)_________. The remarkable diversity of species on our planet has been shaped by countless adaptations to different environmental challenges; moreover, (20)_________. Scientists have discovered that even the smallest organisms can have far-reaching impacts on their ecosystems, and these impacts often cascade through multiple levels of the food web. The complex interactions between plants and their pollinators, (21)_________, demonstrate nature's remarkable ability to forge mutually beneficial relationships. Environmental factors such as temperature, rainfall, and soil composition play crucial roles in shaping these ecological relationships. From the smallest microorganisms in the soil to the largest predators roaming vast territories, (22)_________. These delicate ecological connections remind us of our responsibility to protect and preserve the natural world for future generations. Question 18: A. countless species have been interconnected through complex relationships and dependencies B. where countless species are interconnected through complex relationships and dependencies C. countless species were interconnected through complex relationships and dependencies D. which countless species are interconnected through complex relationships and dependencies Question 19: A. inhabiting these diverse ecosystems face unprecedented challenges in adapting to environmental changes B. having inhabited these diverse ecosystems face unprecedented challenges in adapting to environmental changes C. which are inhabiting these diverse ecosystems face unprecedented challenges in adapting to environmental changes D. inhabited these diverse ecosystems face unprecedented challenges in adapting to environmental changes Question 20: A. ecosystem health serves as a crucial indicator of this biodiversity B. this ecosystem indicates the crucial services of biodiversity health C. this biodiversity serves as a crucial indicator of ecosystem health D. the crucial health indicates biodiversity services in this ecosystem Question 21: A. which has developed through centuries of coevolution B. that developed through centuries of coevolution C. having been develop through centuries of coevolution D. having developed through centuries of coevolution Question 22: A. the intricate tapestry contributes to each species life B. each tapestry lives through the species intricate contributions C. the life tapestry makes each species more intricate