Which of the following describes the patterns of cleavage of an animal egg?Multiple choice question.They vary in invertebrates but are identical in all vertebrates.They vary among animal phyla.They are the same in all animal phyla.
Question
Which of the following describes the patterns of cleavage of an animal egg?Multiple choice question.They vary in invertebrates but are identical in all vertebrates.They vary among animal phyla.They are the same in all animal phyla.
Solution
The correct answer is: They vary among animal phyla.
Cleavage patterns in animal eggs are not uniform across all animal phyla. They can vary greatly depending on the amount and distribution of yolk in the egg, which is a characteristic that can differ among animal phyla. For example, eggs with a lot of yolk (like bird eggs) have a different cleavage pattern than eggs with little yolk (like mammalian eggs). Therefore, the statement "They vary among animal phyla" is the most accurate.
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