Question

Section-C (Biology)
QI. Answer very short answer:
1x5=5
1. How many bones are there in human body?
2. Which system in the animal body provide oxygen to the body?
3. Name the system that brings about movement in the body.
4. List some trees that grow in the mountain.
5. Name a plant and a animals that live in the sea.
QII. Short types questions:
2x2=4
1. How do plants adapt themselves to live in water?
2. Name the five senses provide to us by the nervous system.
QIII. Answer the following questions:
3x3=9
1. How do fish adapt themselves to live in water?
2. Enumerate the different functions of the digestive system.
3. Define a biotic factor of an environment.​

Answer 1

Ql

1. There are 206 bones in human body.
2. The circulatory system provide oxygen to the body.
3. Skletal muscle of the trunk and limbs.
4. Oak, Spruce, Larch, Maple,Elm, etc.grow in the mountain.
5. Phytoplankton(plant) and Dolphins(animal) live in the sea.

Qll

1. Aquatic plants require special adaptation for living submerged in water,or at waters surface. Aquatic plants can only grow in water or in soil that is permanently saturated with water.
2. The five sense are----------- Sight, Smell, Hear,Touch and Taste.

Qll

1. Fish have adapted to their environment show the evolution of gills,swim bladder and fins. Gills allow fish to absorb oxygen from the water swim bladder allow fish to maintain the level of buoyancy.
2. The function of the digestive system is digestion and absorption.Digestion is the breakdown of food into small molecules, which are then absorbed into the body.The digestive tract includes the mouth, pharynx, esophagus, stomach, large intestine and small intestine. Accessory organs includes the teeth, and tongue, salivary gland, liver,gallbladder, and pancreas.
3. A boitic factors are the non-living parts of the environment that can often have a major factors include water, sunlight, oxygen, soil,and temperature. Water is a very important abiotic factor --- it is often said that "Water is life. " All living organisms need water.

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