Question # 1

Number of Ribs in man are:

10 pairs

12 pairs

20 Pairs

22 pairs

Special organs , tissues or cells of the body which detect stimulae:

Receptors

Coordination

Effectors

Dentrites

______ is joint move in only one plane.

Ball & Socket

Hinge joint

Moveable joint

Slightly moveable joints.

When did scientist become able to cut and unite DNA?

1945

1924

1944

1970

____________ hydrogen bonds are present between cytosine and guanine:

2

3

4

5

The thickness of biosphere is:

02 km

20 km

50 km

200 km

Biology Life Science Test Easy Mode MCQs With Answers