Answer:
-"Cell - some cells are meant to do a certain job then destroy self
-Digestion of surplus cells by their own lysosomal enzymes
Explanation:
The correct answer is - No.
The Cambrian explosion is a term used for the big and rapid diversification of the animal species, but it is not the period in which the animal life started. The animal life started in the period between 620 and 550 million years ago, in what is known as the Vendian Period. In the Vendian Period, the first complex animal organisms appeared, started to develop and evolve, though it is not a period where there was a high diversification of the species. The later Cambrian Period provided better living conditions, and that resulted in a so called ''explosion of life'', which resulted in much more new species developing and evolving.
Natural selection gets rid of those who are unfit of surviving and allows those who can survive to reproduce and live on
Just took the test, the answer was 100, not 2
