Mesozoic should be the correct answer.
Answer: Kingdom
Explanation:
The linnaean system of classification used in taxonomy start from highest (most general category) to the lowest level as follows: Kingdom --> phylum/division --> class --> order --> family --> genus --> species.
Thus, since the first level (Kingdom) require species to have the least number of common features, the most species are found in it.
For instance: living organisms of all species are classed into just 5 kingdoms whereas over a billion species exist.
I believe it is the production of chlorophyll. Respiration occurs in all living cells including leaves.
Answer:
The answer is A.
Explanation:
The correct order for the bone cells from unspecialized stem cell to highly specialized mature cells is Osteoprogenitor Cells, Osteoblasts and Osteocytes so the correct answer is A.