Between the 6th and 21st days of the menstrual cycle
Plant cells have a cell wall, but animals cells do not. Cell walls provide support and give shape to plants. Plant cells have chloroplasts, but animal cells do not. ... Plant cells usually have one or more large vacuole(s), while animal cells have smaller vacuoles, if any are present.
Answer:
the answer is d
Explanation:
Individual oxygen atoms are formed when UV rays strike oxygen molecules.