Mutations Are the Raw Materials of Evolution. A mutation is a change in the sequence of an organism's DNA. What causes a mutation? Mutations can be caused by high-energy sources such as radiation or by chemicals in the environment
A plasma membrane Hope it helped.
Answer:
Option B
Explanation:
The series of events mentioned in this description are as follows -
a) In 1850, ash layer deposits over the layer of red clay
b) In 1902, layer of silt from tsunami covers the ash
Now pot is found in between ash and red clay layer
While coin is found in between ash and silt.
Thus, it is clear that pot was first buried between the ash and red clay layer. While coin was buried in 1902 above the ash layer but beneath the silt layer.
Hence, option B is correct
Answer:
The correct answer would be divergent evolution showing by homologous organs.
Explanation:
In the illustration human arm, the flipper of the dolphin, wings of bat and forearm of frog are shown. All these four forelimbs have a different function, however, these forelimbs are having the same underlying anatomy.
The organs having basic structure and origin, but different functions are known as homologous organs. These organs point towards the same ancestor from these organisms evolved. They show a case of divergent evolution.
When related species become less similar in order to adapt and survive in different conditions, evolution is called divergent evolution.
Thus, these forelimbs provide evidence for divergent evolution.
