Animal nutrition includes requirement of nutrients, mode of intake of food, and its utilization in the body.
(a) Ant: Type of food-Sugar, food particles Mode of feeding -Scraping
The functions of the tongue are as follows:
(1) It is used for talking.
(2) It mixes saliva with the food during chewing and helps in swallowing food.
(3) It is used to identify the taste of food like sweet or salty etc. due to presence of taste buds on it.
Glucose is the simplest form of carbohydrate that can be easily broken down to give energy. Hence, we get instant energy from glucose. Moreover, glucose mixes directly into the blood stream making it readily available to the body.
Amoeba is a single-celled organism found in pond water. It has a cell membrane, a dense, rounded nucleus and many bubble-like vacuoles. Amoeba constantly changes its shape and position. It pushes out one or more finger like projections, called pseudopodia or false feet for movement and capturing of food. Amoeba feeds on microscopic organisms. When it senses food, it pushes out pseudopodia around the food particle and engulfs it. The food becomes trapped in a food vacuole and digested by the digestive juices.