Explanation:
Cell wall is not present in animal cells .
I would say D narrow temperature. Most other planets are too hot or cold to sustain life.
These statements are both true. However, tuna are warm blooded and all other fish (but mackerel shark) are cold blooded. There are many fish that swim in both the Atlantic and Mediterranean. Therefore the answer must be B.
Answer:
C. Axis
Explanation:
The label "N" refers to the northern hemisphere, and the red line is the axis on which the Earth rotates.