Multicellular organisms have a hierarchical organisation where cells form tissues, tissues form organs, organs form organ systems and organ systems together form the complete organism. Each level performs specialised functions while coordinating with other levels. This arrangement creates division oRead more
Multicellular organisms have a hierarchical organisation where cells form tissues, tissues form organs, organs form organ systems and organ systems together form the complete organism. Each level performs specialised functions while coordinating with other levels. This arrangement creates division of labour, increases efficiency and allows organisms to carry out complicated processes like digestion, movement, respiration and reproduction smoothly.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Plant and animal tissues are different because plants and animals perform different activities. Plants remain fixed, prepare food by photosynthesis and require strong supporting tissues. Animals move from place to place, respond quickly and need muscular and nervous tissues. Plant cells have rigid wRead more
Plant and animal tissues are different because plants and animals perform different activities. Plants remain fixed, prepare food by photosynthesis and require strong supporting tissues. Animals move from place to place, respond quickly and need muscular and nervous tissues. Plant cells have rigid walls, while animal cells remain flexible. Therefore, tissues differ according to structure, movement and functional requirements.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Plants increase in girth because of lateral meristematic tissue found along the circumference of stems and roots. The cells divide continuously and add new cells on both sides, causing the stem to become thicker. In woody plants, this growth forms annual rings. Lateral meristem helps strengthen planRead more
Plants increase in girth because of lateral meristematic tissue found along the circumference of stems and roots. The cells divide continuously and add new cells on both sides, causing the stem to become thicker. In woody plants, this growth forms annual rings. Lateral meristem helps strengthen plants and supports increasing size as they mature over time.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
The increase in plant girth occurs because lateral meristematic cells divide repeatedly. These actively dividing cells produce new cells towards the inner and outer sides of the stem in concentric layers. As more cells are added, the stem becomes thicker. This process also forms annual growth ringsRead more
The increase in plant girth occurs because lateral meristematic cells divide repeatedly. These actively dividing cells produce new cells towards the inner and outer sides of the stem in concentric layers. As more cells are added, the stem becomes thicker. This process also forms annual growth rings and provides strength and support to older plants and trees.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
Plants regrow after being cut due to intercalary meristem present near nodes and internodes. These actively dividing cells continue producing new tissues even after the shoot tip is removed. As a result, new branches and shoots develop again. This ability helps grasses, hedges and many plants regeneRead more
Plants regrow after being cut due to intercalary meristem present near nodes and internodes. These actively dividing cells continue producing new tissues even after the shoot tip is removed. As a result, new branches and shoots develop again. This ability helps grasses, hedges and many plants regenerate quickly after cutting, mowing or grazing by animals.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
In all multicellular organisms, there is a hierarchy of organisation. Explain.
Multicellular organisms have a hierarchical organisation where cells form tissues, tissues form organs, organs form organ systems and organ systems together form the complete organism. Each level performs specialised functions while coordinating with other levels. This arrangement creates division oRead more
Multicellular organisms have a hierarchical organisation where cells form tissues, tissues form organs, organs form organ systems and organ systems together form the complete organism. Each level performs specialised functions while coordinating with other levels. This arrangement creates division of labour, increases efficiency and allows organisms to carry out complicated processes like digestion, movement, respiration and reproduction smoothly.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-3/
See lessWhy are Plant and Animal Tissues Different?
Plant and animal tissues are different because plants and animals perform different activities. Plants remain fixed, prepare food by photosynthesis and require strong supporting tissues. Animals move from place to place, respond quickly and need muscular and nervous tissues. Plant cells have rigid wRead more
Plant and animal tissues are different because plants and animals perform different activities. Plants remain fixed, prepare food by photosynthesis and require strong supporting tissues. Animals move from place to place, respond quickly and need muscular and nervous tissues. Plant cells have rigid walls, while animal cells remain flexible. Therefore, tissues differ according to structure, movement and functional requirements.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-3/
See lessHow do plants grow in girth?
Plants increase in girth because of lateral meristematic tissue found along the circumference of stems and roots. The cells divide continuously and add new cells on both sides, causing the stem to become thicker. In woody plants, this growth forms annual rings. Lateral meristem helps strengthen planRead more
Plants increase in girth because of lateral meristematic tissue found along the circumference of stems and roots. The cells divide continuously and add new cells on both sides, causing the stem to become thicker. In woody plants, this growth forms annual rings. Lateral meristem helps strengthen plants and supports increasing size as they mature over time.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-3/
See lessWhat causes this increase in girth?
The increase in plant girth occurs because lateral meristematic cells divide repeatedly. These actively dividing cells produce new cells towards the inner and outer sides of the stem in concentric layers. As more cells are added, the stem becomes thicker. This process also forms annual growth ringsRead more
The increase in plant girth occurs because lateral meristematic cells divide repeatedly. These actively dividing cells produce new cells towards the inner and outer sides of the stem in concentric layers. As more cells are added, the stem becomes thicker. This process also forms annual growth rings and provides strength and support to older plants and trees.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-3/
See lessHow do plants grow after being cut?
Plants regrow after being cut due to intercalary meristem present near nodes and internodes. These actively dividing cells continue producing new tissues even after the shoot tip is removed. As a result, new branches and shoots develop again. This ability helps grasses, hedges and many plants regeneRead more
Plants regrow after being cut due to intercalary meristem present near nodes and internodes. These actively dividing cells continue producing new tissues even after the shoot tip is removed. As a result, new branches and shoots develop again. This ability helps grasses, hedges and many plants regenerate quickly after cutting, mowing or grazing by animals.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
https://www.tiwariacademy.com/ncert-solutions/class-9/science/exploration-chapter-3/
See less