Answer:
I believe it's <em>size</em>
Answer:
The animals adapt to survive.
Explanation:
If a giraffe can't reach the food that another one can, that giraffe will die and the longer necked one wll survive. Adaptations over time cause evolution. The fittest will survive. (Darwinism)
Sorry me nobody else knew either lollll
Base of the substitution of the codon or frameshift mutation
Increase in irritability , ie change in mood and an inability to regulate behaviour
