Why are the beak size and shapes of darwin's finches different?

C) They adapted to the type of food available.

Explanation:

The beak sizes and shapes of Darwin's fiches are different because of survival of the fittest. The finches that had beaks that could get the food survived while the other died off. Thus, the number of those survived finches increased while the others decreased. The type of food available in each environment is different from the other, which is why they have different sizes and shapes.

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:

maritime tropical may be your answer.