Exercises 1. Similarities and Differences between the Laboratory Thermometer and the Clinical Thermometer Similarities: Both are used to measure temperature. Both have mercury inside to indicate the temperature. Both have a uniform glass tube with a scale. Differences: The clinical thermometer has a kink to prevent the mercury level from falling, while the laboratory thermometer […]
Exercise Answers 1. Fill in the blanks: (a) The main steps of nutrition in humans are ingestion, digestion, absorption, assimilation, and egestion. (b) The largest gland in the human body is liver. (c) The stomach releases hydrochloric acid and digestive juices which act on food. (d) The inner wall of the small intestine has many […]
Exercise Questions and Answers Why do organisms take food? Organisms take food to obtain the necessary nutrients required for growth, energy, repair of damaged parts, and for carrying out vital life processes. Distinguish between a parasite and a saprotroph. Parasite: A parasitic plant like Cuscuta takes food from a living host plant, harming the host […]