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Questions and Answers
What is the floral axis termed as when a shoot tip transforms into a flower?
What is the floral axis termed as when a shoot tip transforms into a flower?
- Cymose
- Racemose
- Floral meristem
- Inflorescence (correct)
In which type of inflorescence do the flowers continue to grow laterally in an acropetal succession?
In which type of inflorescence do the flowers continue to grow laterally in an acropetal succession?
- Floral meristem
- Cymose
- Racemose (correct)
- Inflorescence
What are the accessory organs in a typical flower?
What are the accessory organs in a typical flower?
- Androecium and gynoecium
- Calyx and corolla (correct)
- Racemose and cymose
- Floral meristem and inflorescence
What is the reproductive unit in the angiosperms?
What is the reproductive unit in the angiosperms?
When is a flower termed as bisexual?
When is a flower termed as bisexual?
What was the initial focus of naturalists' description of biology?
What was the initial focus of naturalists' description of biology?
Why did biology remain as a natural history for a long time?
Why did biology remain as a natural history for a long time?
What drew more attention from scientists in reductionist biology?
What drew more attention from scientists in reductionist biology?
What became meaningful and helpful in framing research questions in physiology or evolutionary biology?
What became meaningful and helpful in framing research questions in physiology or evolutionary biology?
What is the main focus of the following chapters in the unit on structural organisation in plants and animals?
What is the main focus of the following chapters in the unit on structural organisation in plants and animals?
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Study Notes
Flower Morphology
- When a shoot tip transforms into a flower, the floral axis is termed as a receptacle.
Inflorescence
- In a scorpioid cyme, flowers continue to grow laterally in an acropetal succession.
Flower Structure
- Accessory organs in a typical flower are sepals, petals, stamens, and carpels.
Reproductive Unit
- The reproductive unit in angiosperms is the flower.
Bisexual Flowers
- A flower is termed as bisexual when it has both androecium (male reproductive organs) and gynoecium (female reproductive organs).
History of Biology
- Initially, naturalists focused on describing biology with an emphasis on classification and naming of organisms.
- Biology remained a natural history for a long time due to the focus on descriptive classification.
- Molecular biology drew more attention from scientists, shifting focus from descriptive biology to reductionist biology.
- Evolutionary principles became meaningful and helpful in framing research questions in physiology and evolutionary biology.
Structural Organisation in Plants and Animals
- The main focus of the following chapters is on the structure, function, and diversity of plant and animal bodies.
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