Answer:
Before cell division must occur, the chromosomes must replicate themselves. Sister chromatids are the two initially identical copies.
Answer: B. on the surfaces of organs, on the walls of cavities, on the outer surface of the body, and in glands of the body.
Explanation:
The epithelial tissues are the tissues that are present throughout the parts of the body. They form the covering of the body surfaces. It helps in lining the body cavities and organs. It forms the major tissues of the glands.
These tissues are important as they perform diversity of functions in the body. Such as protection, absorption, secretion, filtration, excretion, sensory reception and diffusion.
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A chromosome can be found in a molecules (which is in a cell).A chromosome is like a thread and it carries a living things genetic info.<span />
