A cell that just fertilized has to divide 6 times to form a 64 cell blastomere.
<u>Explanation:</u>
Human reproduction begins with the fusion of male gamete sperm and female gamete ovum. The fusion of sperm and ovum forms the zygote that is diploid. The zygote then undergoes mitotic division to develop into embryo.
The zygote first divides into two and the two individual cells divide again to form four individual cells and so on. Thus the number of cells after each division can be represented by the equation 
where n is the number of divisions. in the question it is given that the blastomere has 64 cells.
n=6
This means that the fertilized cell has to divide 6 times to develop into 64-celled blastomere.
Answer:
An advantage to heterospory is endosporic gametophyte.
The endosporic gametophyte do permits for embryonic formation. It prompts it to have a reduced vulnerability to varying form of environments.
The second advantage that heterscopy could offer to plants is ensuring of a well apportioned nutrient filled environment.
The well apportioned nutrient filled environment is formed as a result of the megasporangium been adhered to the sporophytic plant body. This sees to promote a good formation of the embryo.
A further advantage of heterscopy is the aftermath of fertilization.
This integument is hard as it is necessary to preserve the female gametophyte and embryo.
He noted that each finch species had a different beak type depending on the island's food supply.
Darwin also saw several different species of finches on the Galapagos Islands, but different species from island to island. Finches that ate large nuts had strong beaks for prying them open.
Darwin's Finches Darwin observed that the shape of the beaks of different finch species varied. He hypothesized that the beaks of ancestral species adapted over time to equip finches to acquire various food sources. According to Charles Darwin, who visited the Galapagos Islands. Noted that unique creators were similar from island to island and they were perfectly adapted to their environment.
Learn more about Charles Darwin here:- brainly.com/question/1279802
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It has a membrane around it separate from the original cell and it has its own DNA separate from the original cell, showing it was once its own cell
