Cellular respiration is the process by which cells get energy from sugars in the presence of oxygenBoth plant and animal cells undergo cellular respiration to stay alive and to grow. During cellular respiration, sugar is broken down into smaller molecules and combined with oxygen to produce carbon dioxide and water The rearrangement of these molecules releases the energy needed by plants and animals. Write a scientific explanation that explains how oxygen and carbon dioxide travel within the seed and the egg. ( I just need help with the reasoning! )

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explanation:

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:

the answer to your question is sperm

not necessarily. higher fitness requires the organism to be reproductive successful. for example, an organism at age 10 with 15 offspring is much more fit than an organism at age 15 with only 5 offspring.