Question

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Answer 1

Answer:

1}As it has to prevent water loss, as well as inhibit invasion of pathogenic microbes. The epidermal tissues serve as the barrier between the external environment and the body. Hence, epidermal tissues have no intercellular spaces.

2}This type of motion is defined as the motion of an object in which the object travels in a straight line and its velocity remains constant along that line as it covers equal distances in equal intervals of time, irrespective of the duration of the time.

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Answer 2

1)

As it has to prevent water loss, as well as inhibit invasion of pathogenic microbes. The epidermal tissues serve as the barrier between the external environment and the body. Hence, epidermal tissues have no intercellular spaces.

2) Definition: This type of motion is defined as the motion of an object in which the object travels in a straight line and its velocity remains constant along that line as it covers equal distances in equal intervals of time, irrespective of the duration of the time.

Example of Uniform Motion:

If the speed of a car is 10 m/s, it means that the car covers 10 meters in one second. The speed is constant in every second.

Movement of blades of a ceiling fan.

Or....

2)When an object is moving along a straight path, magnitude of average velocity is equal to the average speed. Therefore, numerical ratio of average velocity to average speed is one.

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