Jim is in a crowd of people at the mall looking for his girlfriend tammy, who was supposed to meet him for dinner. jim realizes tammy is across the room as he catches a whiff of her overpowering perfume. which process explains why jim is able to smell the perfume?
a. osmosis
b. diffusion
c. active transport
d. facilitated diffusion

The answer would most likely be B, diffusion. Diffusion is the process of molecules going from an area of higher concentration of those particles (around Tammy) to an area of lower concentration (around Jim who is across the room), without the use of energy, as they are going with the concentration gradient (higher concentration to lower concentration). In this question, the molecules would be the molecules of Tammy's perfume. The area around her has a higher concentration of perfume particles, as she sprayed the perfume on herself. The area around Jim would be the area of lower concentration, as there are less molecules of perfume around him. Osmosis is the diffusion of water molecules from an area of higher water concentration to an area with a lower water concentration through a semi-permeable membrane. Active transport is the process of diffusion, however, it requires energy as the molecules go across their concentration gradient (from low concentration to high concentration). Facilitated diffusion is the process by which molecules go from a higher concentration to a lower concentration. However, the molecules go through a cell's membrane with the aid of proteins on the membrane. Therefore the answer would be diffusion.

Explanation:

answer; ///i believe that the correct answer is (e); check first good

fertilization, pictured in figure 24.23a is the process in which gametes (an egg and sperm) fuse to form a zygote. the egg and sperm each contain one set of chromosomes. to ensure that the offspring has only one complete diploid set of chromosomes, only one sperm must fuse with one egg. in mammals, the egg is protected by a layer of extracellular matrix consisting mainly of glycoproteins called the zona pellucida. when a sperm binds to the zona pellucida, a series of biochemical events, called the acrosomal reactions, take place. in placental mammals, the acrosome contains digestive enzymes that initiate the degradation of the glycoprotein matrix protecting the egg and allowing the sperm plasma membrane to fuse with the egg plasma membrane, as illustrated in figure 24.23b. the fusion of these two membranes creates an opening through which the sperm nucleus is transferred into the ovum. the nuclear membranes of the egg and sperm break down and the two haploid genomes condense to form a diploid genome.

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