Explanation:
Palaeontologists study the fossil and once they found that the fossil of an organism in layer 2 and 3. The fossil present in layer 3 is very similar to the fossil present in layer 2.
From this, it could be concluded that the layer 3 possible might be evolved from the fossil present in layer 2. The fossil of layer 3 might be a close relative of the extinct fossil of layer 2 as they could have shared a common ancestor.
Many possibilities could be explained but these two are more valid.
It acts as an accessory pigment! Hope this helps! Also sorry that it took 11 hrs. for people to answer! =)
DNA was discovered during 1953.
Rough and smooth endoplasmic reticulum
