Which echinoderm is Horace most likely examining? a sea cucumber because it uses tentacles for feeding
a sea cucumber because it has tube feet
a brittle star because it uses tentacles for feeding
a brittle star because it has tube feet

rain is the best answer

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

d. groundwater flows through the subsoil and deposits minerals.

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.