LAQ : Write in brief the evolution in plant and animal kingdoms

Question

Answer

Evolution in Plant Kingdom:

1. Origin of the first photosynthetic organisms around 3.5 billion years ago.
2. Development of multicellularity in algae and plants around 1.2 billion years ago.
3. Emergence of land plants around 500 million years ago.
4. Diversification of land plants into mosses, ferns, gymnosperms, and angiosperms.
5. Development of seeds, flowers, and fruits in flowering plants.
6. Adaptation to diverse environments, including deserts, forests, and aquatic habitats.
7. Evolution of symbiotic relationships with animals, such as pollination by insects and birds.
8. Continued diversification and speciation, leading to the vast array of plant species we see today.

Evolution in Animal Kingdom:

1. Emergence of the first multicellular animals around 600 million years ago.
2. Diversification of animal body plans, including radial symmetry, bilateral symmetry, and segmentation.
3. Development of complex nervous systems and sensory organs.
4. Emergence of the first vertebrates around 500 million years ago.
5. Diversification of vertebrates into fish, amphibians, reptiles, birds, and mammals.
6. Evolution of specialized adaptations, such as wings, fins, teeth, and claws.
7. Adaptation to diverse environments, including land, sea, and air.
8. Continued diversification and speciation, leading to the vast array of animal species we see today.