Define the term amphiphilic and describe how it determines the arrangement of phospholipids into a bilayer.

Amphiphilic means that there is both a hydrophilic and hydrophobic part.

Explanation:

There are two parts to the phospholipids, a head an a tail. The head group is hydrophilic (Likes water) and the tail is hydrophobic (hates water). Bilayer means to layers, so there are two sections with the heads pointed out or inwards in regard to the cell and the tails intertwine with each other

answer:   option a) glucagon was secreted by his pancreas before he ate the cookies because blood glucose was low. insulin was secreted after he ate the cookies because his blood glucose was high.

explanation:

both male and female gametes are produced by meiosis of the germ cells. therefore, both male and female gametes are haploid. one male and one female gamete unite during the fertilization to form the diploid zygote. in seed bearing plants, pollen grain is the male gametophyte, which produces sperm cells.