Ascientist is looking at a cell's membrane. she notices that the membrane is composed (primarily) of a certain type of macromolecule. these macromolecules are unique in that they are not composed of monomers, but instead resemble "hairpins" with fatty acid tails. this scientist is looking at

frogs. the lower the ph the higher the acid content. frogs have the highest tolerance in this scenario.

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.