The slight negative charge at one end of one water molecule is attracted to the slight positive charge of another water molecule. what is this attraction called?

a a hydrogen bond

b a covalent bond

c an ionic bond

d a hydrophilic bond

Which of the following best describes the purpose of the parathyroid hormone? a. it decreases the blood calcium level and decreases blood phosphorus level. b. it decreases the blood calcium level and increases the blood phosphorus level. c. it increases the blood calcium level and increases blood phosphorus level. d. it increases the blood calcium level and decreases blood phosphorus level.

Which is the most dominant generation in a liverwort

Do fish feel pain? and if they do what pain