Answer:
The biosynthesis of mitochondria and plastids requires contributions from two separate genetic systems. Most of the proteins in mitochondria and chloroplasts are encoded by special genes devoted to this purpose in nuclear DNA.
Explanation:
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Answer:
Aquatic animals can be found in water habitats, which can be either fresh or marine. Terrestrial animals can be found exclusively in the land. Aquatic animals respire through gills or their skin. ... The main difference between aquatic and terrestrial animals is their habitat and modes of living
Explanation:
<span>Answer: absence of xylem and phloem
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Embryonic differentiation<span> is the process of development during which embryonic cells specialize and diverse tissue structures arise. Animals are made up of many different cell types, each with specific functions in the body. However, during early embryonic development, the embryo does not yet possess these varied cells; this is where embryonic </span>differentiation<span> comes into play. The </span>differentiation<span> of cells during </span>embryogenesis<span> is the key to cell, tissue, organ, and organism identity.</span>
