University of Hyderabad
Choose an animal which represents a particular phylum. Briefly describe its features characteristic of its phylum including morphology, embryology, and physiology. Identify adaptations of your animal compared with other animals. If you chose a more primitive animal, identify adaptations compared with more primitive organisms outside of the animal kingdom.
A student is conducting their science experiment on the effect of caffeine on dogs. He has 3 groups of test subjects. The 1st group of dogs receives plain water. The 2nd group of dogs receives 10 mg of caffeine each, and the 3rd group receives 50 mg of caffeine each. He will measure their activity levels by recording how long each dog runs without stopping, after giving them the pills. What is the dependent variable in this experiment?
Johnny Quest is a boy of mass 70 kg. He is standing on a diving board bent 50 cm down and of stiffness 20 kN/m and he is 5 m high above the tranquil waters of the blue lagoon. He is flung into the air by the diving board towards the top of a coconut tree. If he lands at a speed of 3 m/s then find the height of the tree. Assume he does not lose any energy as heat due to drag – the drag is negligible and the efficiency is 100%.