Indicate whether the following statements are True (T) or False (F).
(a) Unicellular organisms have one-celled body. (T/F)
(b) Muscle cells are branched. (T/F)
(c) The basic living unit of an organism is an organ. (T/F)
(d) Amoeba has irregular shape. (T/F)
(a) True
This statement is true because unicellular organism have one cell present in their body, in unicellular organisms, all functions are performed by a single cell.
(b) False
This statement is false because the muscle cells are striated cells. These are not branched.
(c) False
This statement is false because the basic unit of living organisms is cell. Group of tissues are called as organ.
(d) True
This statement is true because amoeba is irregular in shape. It has pseudopodia. Amoeba is single celled organism.
Popular Questions of Class 8 Science
- Q:-
Describe with the help of a diagram an instrument which can be used to detect a charged body.
- Q:-
Sketch larynx and explain its function in your own words.
- Q:-
Arrange the following boxes in proper order to make a flow chart of sugarcane crop production.
- Q:-
Make a labelled diagram of a candle flame.
- Q:-
What is metamorphosis? Give examples.
- Q:-
The following Table shows the total power shortage in India from 1991– 1997. Show the data in the form of a graph. Plot shortage percentage for the years on the Y-axis and the year on the X-axis.
- Q:-
Make sketches of animal and plant cells. State three differences between them.
- Q:-
What is a constellation? Name any two constellations.
- Q:-
Describe the construction of a kaleidoscope.
- Q:-
Complete the crossword with the help of clues given below:
Across
1. This is necessary for photosynthesis.
3. Term for component present in the cytoplasm.
6. The living substance in the cell.
8. Units of inheritance present on the chromosomes.Down
1. Green plastids.
2. Formed by collection of tissues.
4. It separates the contents of the cell from the surrounding medium.
5. Empty structure in the cytoplasm.
7. A group of cells.
Recently Viewed Questions of Class 8 Science
- Q:-
Give reasons:
(a) Water is not used to control fires involving electrical equipment.
(b) LPG is a better domestic fuel than wood.
(c) Paper by itself catches fire easily whereas a piece of paper wrapped around an aluminium pipe does not. - Q:-
What is metamorphosis? Give examples.
- Q:-
What is the angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?
- Q:-
Explain why chloroplasts are found only in plant cells?
- Q:-
Sometime, a crackling sound is heard while taking off sweater during winters. Explain.
- Q:-
Name the petroleum product used for surfacing of roads.
- Q:-
Complete the following word puzzle with the help of clues given below.
Down
1. Providing water to the crops.
2. Keeping crop grains for a long time under proper conditions.
5. Certain plants of the same kind grown on a large scale.Across
3. A machine used for cutting the matured crop.
4. A rabi crop that is also one of the pulses.
6. A process of separating the grain from chaff.
- Q:-
A child staying in a coastal region tests the drinking water and also the seawater with his tester. He finds that the compass needle deflects more in the case of seawater. Can you explain the reason?
- Q:-
Describe the ‘Green House Effect’ in your own words.
- Q:-
Sketch larynx and explain its function in your own words.
- NCERT Chapter