Which is an example of genetic engineering?

a.
humans’ ability to digest cow milk

b.
some bacteria’s resistance to antibiotics

c.
golden rice enriched with vitamin a

d.
lizards with longer legs for surviving floods

its d bro cuz genetic engineering is the change an animal does to survive in its envierment

for 8 am not sure maybe yes?

for 9 if it is asking if the male is more or less it would be less

hope i even just a little : )

if the type of the food available changes, then the frequency of beak types will change, because birds with beaks more suited to the available food will be more successful over time.