What are the 2 parts that make up the lock-and-key model of enzyme function? a)
enzyme and catalyst
Ob b)
enzyme and substrates
c)
enzyme and products
d) )
enzyme and active site

✿   this landform has a high elevation and a high relief

✿   this landform is a mountain

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

i believe it's c. the trait for large beaks will be passed on to future generations through natural selection.

since eventually smaller beaks would have to find another source of food or even eventually just die out from the lack of food.