How many electrons the two atoms are sharing determines how many covalent bonds two atoms can make. :)
I think the 4 major types of vectors are plasmids, viral vectors, cosmids, and artificial chromosomes. The most commonly used vectors are plasmids.
Hope this helps! ;0
Answer:
B:
Explanation:
The acorns are not to big
Bears eat plants such as berries, and plants get their energy from the sun. So his energy source's energy source is sunlight, which also makes it his energy source
