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In a pond there were 20 Hydrilla plants....

In a pond there were 20 Hydrilla plants. Through reproduction 10 new Hydrilla plants were added in a year. Calculate the birth rate of the population.

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To calculate the birth rate of the Hydrilla population in the pond, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Initial Population**: - The initial number of Hydrilla plants in the pond is given as 20. 2. **Determine the Number of New Plants Added**: ...
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XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-SECTION-B
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  2. Biodiversity is the combined diversity at all levels of biological org...

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  3. In a pond there were 20 Hydrilla plants. Through reproduction 10 new H...

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  4. Biodiversity must be conserved as it plays an important role in many e...

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  5. How many haploid cells are present in matue female gametophyte of a fl...

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  6. When a tall pea plant was selfed, it produced one-fourth of its progen...

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  7. Chlorofluorocarbons (CFCs) are widely used as refrigerants. Then why i...

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  8. In a pond there were 200 frogs, 40 more were born in a year. Calculate...

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  9. Where does triple fusion take place in a flowering plant? Why is it so...

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  10. Why certain regions have been declared as biodiversity "hot spots" by ...

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  11. How does an electrostatic precipitator work to remove particulate poll...

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  12. Study the given aquatic food chain and answer the questions that follo...

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  13. Why are F(2) phenotypic and genotypic ratios same in a cross between r...

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  14. Geitonogamous flowering plants are genetically autogamous but function...

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  15. When and where do chorionic villi appear in humans ? State their funct...

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  16. In a cross between two tall pea plants some of the offsprings produced...

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  17. A student on a school trip started sneezing and wheezing soon after r...

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  18. Name two commonly used bioreactors. State the importance of using a bi...

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  19. (a) How does cleistogamy ensure autogamy? (b) State one advantage an...

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  20. A mature, embryo-sac in a flowering plant may possess 7-cells, but 8-n...

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