A student cuts a piece of potato into 8 cubes and measures the mass of each piece. The student places 7 of them in a beaker containing a 25% salt
solution. One cube is removed from the beaker every 10 minutes for a period
of 70 minutes and the mass is measure. Using the data below, which
statement best explains the observed change in mass of the potato cube?
Time (min) Mass (g)
0
5
10
4.5
20
4
30
3.5
40
3
50
2.5
60
2.5
70
2,5

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.

explanation:

i dont know this but ask your teacher for !

1. b.

2. d.

3. a.

5. d.

6. c.

these are the only ones that i know, i hope this , and good luck.