Answer:
D. guard cells.. this is answer i think..
Other biological molecules that contain the element of N would be nucleic acids such as DNA and or RNA. There are found in the nucleotides that constitute or make up these nucleic acids.
That is where the fibers of the optic nerve exit the eye extending into the brain. there are no rods and cones there as a result.
Answer: a star expels most of its outer material until only the hot core remains, which then settles down to become a young a white dwarf
Explanation:
