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  • Class 7 Science Study Material

An Educational platform for Preparation and Practice Class 7. Kidsfront provide unique pattern of learning Science with free online comprehensive study material in the form of QUESTION & ANSWER for each Chapter of Science for Class 7. This study material help Class 7, Science students in learning every aspect of Nutrition in Animals. Students can understand Nutrition in Animals concept easily and consolidate their learning by doing Online Practice Tests on Science ,Nutrition in Animals chapter repeatedly till they excel in Class 7, Nutrition in Animals. Free ONLINE PRACTICE TESTS on Class 7, Nutrition in Animals comprise of Hundreds of Questions on Nutrition in Animals, prepared by the highly professionals team. Every repeat test of Nutrition in Animals will have new set of questions and help students to prepare themselves for exams by doing unlimited Online Test exercise on Nutrition in Animals. Attempt ONLINE TEST on Class 7,Science ,Nutrition in Animals in Academics section after completing this Nutrition in Animals Question Answer Exercise.

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Nutrition in Animals
Which one of the following is true?

a) Canines are well developed
b) Canines are
c) Canines are poorly developed in carnivores
d) Molars are well developed in carnivores

Correct Answer Is : Canines are well developed
Solution Is : Canines are used to tear the flesh of living body, hence carnivores have well developed canines.
Canines are

a) Teeth.
b) Animals.
c) Plants.
d) Muscles.

Correct Answer Is : Teeth.
Solution Is : Canines are teeth used for tearing.
Plants store food as

a) Cellulose.
b) Sugar.
c) Glucose.
d) Starch.

Correct Answer Is : Starch.
Solution Is : Plants store food as starch whose digestion starts in the mouth. The salivary glands secrete the enzyme amylase, which converts the starch into sugar giving the taste of sweetness.
The walls of the large intestine absorb

a) Water
b) Digested food.
c) Undigested food.
d) Cellulose.

Correct Answer Is : Water
Solution Is : The undigested food remains in the small intestine, then passes into the large intestine. Some water is absorbed in the large intestine. The remaining semisolid waste (faeces) is egested through the anus.
Heterotrophy are organisms, which

a) Feed on dead and decaying organisms.
b) Draw nutrition from the living tissues of other organisms.
c) Depend on other sources for food.
d) Manufacture their own food.

Correct Answer Is : Depend on other sources for food.
Solution Is : Nutrition is basically of two types-autotrophic and heterotrophic. Green plants make their own food from simple raw materials, so they are called autotrophs. Other organisms are heterotrophs because they depend on other sources for food.
The hardest part of a tooth is the

a) Dentine.
b) Enamel.
c) Pulp.
d) Gum.

Correct Answer Is : Enamel.
Solution Is : All teeth are coated with enamel, which is the hardest substance in the body. Beneath this is the dentine, which is softer than the enamel.
The organ which does not secrete any enzymes for the digestion of food is

a) Pancreas.
b) Stomach.
c) Kidneys.
d) Small intestine.

Correct Answer Is : Kidneys.
Solution Is : Digestive enzymes are secreted by stomach, pancreas and small intestine. Kidneys are not involved in the process of digestion.They are involved in the excretion of nitrogenous wastes.
Humans develop

a) Two sets of teeth during their lifetime.
b) One set of teeth which lasts for a lifetime.
c) A total of twenty four teeth.
d) A total of sixteen teeth.

Correct Answer Is : Two sets of teeth during their lifetime.
Solution Is : Humans have two sets of teeth which develop during their lifetime. The set of milk teeth has 20 teeth, while the permanent set has 32 teeth.
Food moves in the alimentary canal from one region to another by a process called

a) Locomotion.
b) Pumping.
c) Peristalsis.
d) Diastole.

Correct Answer Is : Peristalsis.
Solution Is : The walls throughout the alimentary canal push the food in a wavelike action called peristalsis. The peristaltic wave propels the food towards the stomach from the oesophagus.
The undigested, semisolid food is collected in

a) Anus.
b) Intestine.
c) Rectum.
d) Villa.

Correct Answer Is : Rectum.
Solution Is : The undigested food is collected and stored in the rectum, to be thrown out from the anus, in the process of egestion.
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