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Samuel Hahnemann (1755–1843), a German physician, formulated the principles of homeopathy in the late 18th century.

He introduced the concept of "like cures like" (similia similibus curentur).

He published "Organon of the Healing Art" (1810).

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Water is crucial for vital biological processes like digestion, circulation, and temperature regulation.

It also acts as a solvent, transporting nutrients and waste in living organisms.

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Fertilization in frogs involves the fusion of male and female gametes — a clear example of sexual reproduction.

The budding, fission, vegetative propagation are all forms of asexual reproduction.

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The Aedes mosquito, especially Aedes aegypti, is the primary vector of dengue fever.

Anopheles transmits malaria.

Culex transmits other diseases like West Nile virus.

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Glucose is a small sugar molecule, a simple carbohydrate, not a macromolecule.

Proteins, sucrose (a disaccharide), and fatty acids are larger or complex molecules often considered macromolecules or part of them.

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A hypothesis is a proposed explanation or possible answer to a scientific problem.

Data are facts collected.

Conclusion is the final decision after analysis.

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A hypothesis is a tentative statement or prediction that can be tested through scientific investigation.

It must be subjected to experimentation or observation to determine its validity — it is not always proved but always tested.

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Greenhouses are structures designed to provide an optimal environment for plants, particularly during colder seasons.

They trap sunlight, creating a warmer, more stable temperature that promotes plant growth in winter or colder climates.