How do Organisms Reproduce?
Uttar Pradesh Board · Class 10 · Science
Flashcards for How do Organisms Reproduce? — Uttar Pradesh Board Class 10 Science. Quick Q&A cards covering key concepts, definitions, and formulas.
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Get startedWhy do organisms reproduce when it's not essential for their individual survival?
Answer
Reproduction ensures species survival and continuation. While an individual doesn't need reproduction to stay alive, species without reproduction would become extinct. Reproduction creates large popul…
What happens to DNA during cell reproduction and why don't organisms create exact copies?
Answer
DNA copying occurs during reproduction, but it's not 100% accurate. Small variations occur naturally during copying. These variations are beneficial because they provide genetic diversity, helping spe…
How does binary fission work in Amoeba?
Answer
In Amoeba, the cell divides into two equal halves. The nucleus divides first, followed by the cytoplasm. Since Amoeba has no fixed shape, division can occur in any plane. Each resulting cell is identi…
Why does Plasmodium use multiple fission instead of binary fission?
Answer
Plasmodium (malaria parasite) divides into many daughter cells simultaneously through multiple fission to rapidly increase its population inside the host. This allows quick infection spread and overwh…
What is the difference between regeneration and reproduction in Planaria?
Answer
Regeneration: Planaria can regrow lost body parts or form complete organisms when cut into pieces using specialized cells. Reproduction: Normal reproductive process doesn't depend on being cut. Regene…
How does budding in Hydra work step by step?
Answer
1. Regenerative cells at a specific site divide repeatedly 2. A small outgrowth (bud) forms on the parent's body 3. The bud develops into a tiny Hydra with all organs 4. When fully mature, the bud det…
Why is vegetative propagation advantageous for agriculture?
Answer
Advantages: 1. Faster growth - plants flower and fruit earlier than seed-grown plants 2. Preserves exact characteristics of parent plant 3. Useful for plants that can't produce seeds (banana, seedless…
What happens when you plant a potato piece with 'eyes' versus one without?
Answer
Potato piece WITH eyes: Develops into new plant because 'eyes' are buds containing growing points with stored food. Potato piece WITHOUT eyes: Will not grow because it lacks buds/growing points, even …
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