Question

What will happen if -?
(a) There are no joints in our body.
(b) There is no melanin pigment in our skin.
(c) Instead of 33 vertebrae in our body, we had one single and straight bone.

Answer 1

The answer of the first question, that is, what will happen if there are no joints in our body is, the bone structure or the skeletal structure will fall apart. The joints attach all the bones of the human skeleton. In the absence of it the skeleton will not be formed at all.

The answer to the second question, that is,what will happen if there is no pigment in our skin is, that we will not be able to survive in the sunlight, we would have to stay forever in a dark place as the sunlight will directly penetrate our skin and cause damages due to radiation.

If we had one single and straight bone instead of 33 vertebrae we wouldn’t be able to stand or walk at all. The vertebrae gives us the flexibility by bending in different angles, If there was only a single rigid bone we would have become static for lifetime. 

Answer 2

(a) we could not move ourselves

(c) wouldn't be able to bend even a little