Answer:
a. on the outer surface of the epiphyses.
Explanation:
Articular cartilage of a long bone is found on the outer surface of the epiphyses.
Answer: Natural variation.
Euglena are a unicellular organism. They are classified into the Kingdom Protista. They are then further classified into the Phylum<span> Euglenophyta. All euglena can make their own food by photosynthesis.</span>
Mitosis is important for sexual reproduction indirectly. It allows the sexually reproducing organism to grow and develop from a single cell into a sexually mature individual. This allows organisms to continue to reproduce through the generations.