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6) Civing examples to explain the ways in which seeds of different plants can be used as food
7) Why are plants called producers? How do they synthesise their food?
8) Differentiate between herbivores, carnivores and omnivores on the basis of food they eat.
9). Discuss the type of teeth and feeding habits of herbivores and carnivores.
10) What are parasites? Give two examples.
Answers
Explanation:
We eat the seeds of these plants as food. For eg: wheat, rice Maize, millet ,Peas ,pulses ,mustard ,groundnut ,soyabean. Groundnut and mustard seeds are called oilseeds because they are used to extract edible oils which are used for cooking food. Seeds of mustard plant are used to extract mustard oil.
2).Plants are called producers. This is because they produce their own food! They do this by using light energy from the Sun, carbon dioxide from the air and water from the soil to produce food - in the form of glucouse/sugar. The process is called photosynthesis.
3).Animals that eat plants exclusively are herbivores, and animals that eat only meat are carnivores. When animals eat both plants and meat, they are called omnivores. ... These carnivores may eat insects and worms. Carnivorous animals have strong jaws and sharp teeth to enable them to tear and rip prey.
4).In general, meat-eating carnivores have teeth for tearing and skulls capable of biting with great force, while the plant-eating herbivores have teeth and skulls equipped to grind tough vegetation. Omnivores, which eat both plants and animals, have skulls and dentition suitable for a wide range of foods.
5).A few examples of parasites are tapeworms, fleas, and barnacles. Tapeworms are segmented flatworms that attach themselves to the insides of the intestines of animals such as cows, pigs, and humans. They get food by eating the host's partly digested food, depriving the host of nutrients.