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YouTube has also presented advocacy campaigns through special playlists featured on YouTube Kids, including "#ReadAlong" (a series of videos, primarily featuring kinetic typography) to promote literacy, [12] "#TodayILearned" (which featured a playlist of STEM-oriented programs and videos), [13] and "Make it Healthy, Make it Fun" (a ...
A marine coastal ecosystem is a marine ecosystem which occurs where the land meets the ocean. Worldwide there is about 620,000 kilometres (390,000 mi) of coastline. Coastal habitats extend to the margins of the continental shelves, occupying about 7 percent of the ocean surface area.
YouTube has suggested potential plans to remove all videos featuring children from the main YouTube site and transferring them to the YouTube Kids site where they would have stronger controls over the recommendation system, as well as other major changes on the main YouTube site to the recommended feature and auto-play system. [128]
Of the 50 most recommended videos found in the study, 11 were "oriented toward small children". Cocomelon's "Bath Song | + More Nursery Rhymes & Kids Songs" was the most recommended video in the research project. [47] [48] (As of September 2020, that video had received over 3.2 billion views on YouTube, making it the 19th-most-viewed video on ...
The balance of nature, also known as ecological balance, is a theory that proposes that ecological systems are usually in a stable equilibrium or homeostasis, which is to say that a small change (the size of a particular population, for example) will be corrected by some negative feedback that will bring the parameter back to its original "point of balance" with the rest of the system.
An ecosystem (or ecological system) is a system formed by organisms in interaction with their environment. [2]: 458 The biotic and abiotic components are linked together through nutrient cycles and energy flows. Ecosystems are controlled by external and internal factors.
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A balance in these transfers is vital to the health and stability of an ecosystem. [4] Consumers balance the food chain in an ecosystem by keeping plant populations at a reasonable number. Without proper balance, an ecosystem can collapse and cause the decline of all affected species.