Answer:
deforstation
Explanation:
deforestation can affect competition of food for example when we cut plants for different purposes the animals that eat the plants will starved and die in this cause if want to eat animals products we could not get because animals are died because of the deforestation this cause food competition between human and animals
Paliozoic era- sea life
Mezazoic era- dinorours
Centozoic era- current time
Answer: i believe it is mutation
Explanation: An insertion mutation occurs when an extra nucleotide is added to the DNA strand during replication. This can happen when the replicating strand "slips," or wrinkles, which allows the extra nucleotide to be incorporated (Figure 2). Strand slippage can also lead to deletion mutations.
A or the balance between organic matter and mineral matter
