<span> Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types.</span>
Answer:
The correct answer is D Sister Chromatids may not attach to each other.
Explanation:
Centromeres are the specific point to which the sister Chromatid binds.That means Centromere function to hold the sister Chromatids.
Now according to the question if mutation causes formation of defective centromere then the normal functioning of that centromere will be hampered.
As a result the sister chromatid may not attach to each other.
What do you mean by this question exactly?
The pathway which starts from phytoplankton, crustacean Nauplii, crab larvae and ends with grey whale is the pathway which has maximum number of trophic levels.
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What is trophic levels?</h3>
The trophic level of an organism is the position that it occupies in a food web or in other words, the trophic level of an organism is the number of steps it is from the start of the chain.
In this graph, the pathway starts from phytoplankton which is eaten by crustacean Nauplii. This crustacean is again eaten by crab larvae and finally by the grey whale. This has maximum number of trophic levels as compared to other pathway.
Learn more about trophic levels here: brainly.com/question/1236573
