KNOW ABOUT WITH QUESTIONS ANSWERS

KNOW ABOUT PLANTS AND ANIMALS Do plants feel? Yes, they do. We all know that plants react to light and gravity. But they are also sensitive to touch and sound. But they do not have the feelings of pain or emotion. The leaves of the plant Mimosa pudica droop suddenly when touched. A gentle touch causes only one leaf to droop, but a large disturbance can affect the whole plant. Some of the interesting researches on plants reveal that they grow faster when they are exposed to music around them. Biggest Flying Reptiles? It is the Pterodactyls, which were the advanced group of Pterosaurs. Some of these had very slender teeth, had no tails. The rest of these had no teeth at all. Pteranodon and Quetzalcoatlus were giant flying reptiles. Pteranodon had a wingspan of over 8 meters. It glided slowly over the sea and probably caught fish by scooping them up into its huge throat sac. Quetzalcoatlus had a wingspan of about 10 meters. This reptile looked like an enormous vulture and probably fed on carrion. The flying reptiles were better gliders than fliers. They could hardly move on ground and probably lived on the top of cliffs. When did birds first appear? Archeopteryx, the earliest-known bird, lived in the late Jurassic period. Birds evolved from reptiles. Though Archeopteryx had wings and feathers, it still had a number of reptile-like features. Its beak contained sharp teeth, it had claws on its wings and its long tail had bones. It is believed that Archeopteryx was better at gliding and may have spent most of its time on the ground.