Find the odd one and write the features of others 1. Ribosome, Lysosome, Mitochondrion, Golgi complex

2. Nose, Trachea, Lungs, Heart

3. Find the correct pair from the following a. Robert Hooke - Discovered the centre of the cell b. M. J Schleiden-Found animal body is made up of cells c. Rudolf Virchow -New cells arise only from existing cells

4. Large vacuole is present incell​

a. the production of carbon dioxide through the process of photosynthesis

the oldest known insects are believed to live around 400 millions ago as suggested by the fossil records.   some plants having woody stems also evolved during this time.

after the evolution of insects the first four legged species or the tetrapods evolved in shallow freshwater habitats from the intermediate species approximately 397 million years ago. the tetrapods went on conquering the land giving rise to amphibians, reptiles, mammals and birds.

the major split in tetrapods first occurred 340 million years ago branching off from amphibians.

363 million years ago when the carboniferous period began the insects started roaming on land and taking flights, following which the four limbed tetrapods adapted in the terrestrial habitat.