Suppose you sketch a model of an atom using the ones here as a guide. How would you build a model that is ionized? How would you build a model that is radioactive? (

answer; i believe the correct answer to the above question is ( friction)

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.

it should be d) transitional fossils.

they show the gradualism of evolution throughout a period of time