9th Class Biology – Short Questions & Answers
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Explain the importance of biostatistics in medical research.
Biostatistics is crucial in medical research because it helps in designing experiments, analyzing data, and making valid conclusions. It ensures…
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Describe the different types of statistical data measurement scales used in biostatistics.
There are four main measurement scales in biostatistics: Nominal scale: Categorizes data without a specific order (e.g., blood type). Ordinal…
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Explain the process of hypothesis testing in biostatistics.
Hypothesis testing involves formulating a null hypothesis (H0) and an alternative hypothesis (H1), collecting data, and analyzing it using statistical…
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What is a seed?
A seed is a fertilized ovule that contains an embryo, a food reserve, and a protective coat.
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What is the role of the ovary in plant reproduction?
The ovary houses the ovules (female gametes). After fertilization, the ovary develops into a fruit, and the ovules become seeds.
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What is vegetative propagation?
Vegetative propagation is a form of asexual reproduction in plants where new plants grow from parts of the parent plant,…
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What are the advantages of asexual reproduction in plants?
Asexual reproduction allows rapid reproduction of genetically identical offspring, which can be advantageous in stable environments.
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What is the significance of cross-pollination?
Cross-pollination promotes genetic diversity by combining the genetic material from different plants, leading to stronger offspring with varied traits.
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What is a fruit?
A fruit is the mature ovary of a flower, typically containing seeds. It develops after fertilization.
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What are the main stages of plant reproduction?
The main stages of plant reproduction include pollination, fertilization, seed formation, and seed dispersal.
