Biology Class 9 Chapter 1 Sindh Board 2024!

Описание: biology class 9 chapter 1 sindh board 2024!

In this video, you will learn how 11 types of organisms are formed from a very small particle called an atom. Here's a simplified breakdown:

Atoms: The smallest particles.
Molecules: When similar atoms combine, they form molecules.
Macromolecules: When different molecules combine, they form macromolecules, like carbohydrates, lipids, and proteins.
Cells: When macromolecules combine, they form a cell, which is the basic unit of life.
Tissues: When similar cells combine to perform a specific function, they form tissues. Examples include:
Epithelial tissue
Muscular tissue
Nervous tissue
Connective tissue
Organs: When tissues combine, they form an organ. Examples include the liver, stomach, brain, heart, and kidneys.
Organ Systems: Different organs combine to form an organ system. Examples include:
Nervous system
Cardiovascular system
Digestive system
Respiratory system
Muscular system
Skeletal system
Reproductive system
Organisms: When organ systems combine, they form an organism, like a lion, zebra, cat, or human.
Population: When similar organisms live in the same place, it forms a population.
Community: When different populations live in the same place, they form a community, like cats and dogs living together.
Ecosystem: When a community interacts with its non-living environment, it forms an ecosystem.
Biosphere: Different ecosystems combine to form the biosphere, which is the area on Earth where life exists.

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