What allows membranes to be permeable to small ions? A Option A: small ions can pass directly through a lipid bilayer B Option B: ion channels C Option C: G-proteins D Option D: aquaporins

Which identifies the main purpose of biological taxonomy?

The intervention of extraterrestrials has been used to explain the bermuda triangle, a region of the atlantic ocean where ships and planes are frequently lost, leaving no evidence behind. how would this explanation best be characterized?

Which blood cell spend most of their time in the lymphatic system?