Animal including Humans - Answers

The Year Four Animals including Humans worksheet answers provide insight into the basics of human biology, particularly the digestive system and dental health. The worksheet begins by asking students to identify the location of various organs involved in digestion, ensuring they understand the physical layout of the digestive system. Digestion itself is defined as the process of breaking down food into nutrients that the body needs, which begins in the mouth. The role of saliva is highlighted as both a means to moisten food and to start the digestive process, making it easier to swallow.

Further questions delve into the journey of food through the digestive system, with the small intestine identified as the primary site for nutrient absorption. Students also explore human dentition, learning that humans have two sets of teeth in their lifetime and that an adult has eight incisors. The function of molars is described as chewing and grinding food, an essential step in the digestive process. Additionally, an experiment involving different toothpastes provides a practical understanding of dental care, comparing effectiveness and value for money. The worksheet also touches on basic ecological concepts with a food chain activity, teaching students about energy transfer between producers, prey, and predators in an ecosystem.