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A farmer grows legumes in poor soil, and the plants improve without adding fertilizer. What is the MOST likely hidden reason?
A scientist sees round bacteria forming a cube-like packet of 8 cells. What can he conclude about their division?
A student says: “If bacteria are everywhere, then all bacteria must be harmful.”
Which idea proves the student wrong?
Which environment is NOT mentioned as a place where bacteria can live?
Soil pH, soil texture (sand, clay), and soil water content are classified under which type of abiotic components?
Which arrangement is formed when cocci divide in only one plane and remain attached in long chains?
The statement “rod-shaped bacteria are 3–10 pm long” likely contains an error because
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⏱ وقت الرسالة: 2026/05/19 - 03:48:20 AM
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