Which of these is a biotic factor in an ecosystem? A. Strands of seaweed B. Crystals of salt C. Grains of sand D. Rays of sunlight
Question
Which of these is a biotic factor in an ecosystem? A. Strands of seaweed B. Crystals of salt C. Grains of sand D. Rays of sunlight
Solution
The answer is A. Strands of seaweed. This is because a biotic factor in an ecosystem refers to the living components, such as plants and animals. Seaweed is a type of marine plant, therefore it is considered a biotic factor. On the other hand, crystals of salt, grains of sand, and rays of sunlight are all abiotic factors, which are the non-living components of an ecosystem.
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