Which is a reflex response?

A) putting on a coat when you see that it is snowing outside

B) pulling your foot away after stepping on a sharp object

C) laughing at a funny joke told by one of your classmates

D) eating a snack when your stomach growls from hunger

Help heh:)

Which term describes the number of waves that pass a given point in a given time? crest frequency trough wavelength

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? view available hint(s)when in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. this molecule rapidly enters the cell regardless of whether its concentration is higher inside or outside the cell. using this information, which transport mechanism is most likely to be responsible for the movement of the molecule across a plasma membrane? active transportexocytosis