Answer:
a rigid layer of polysaccharides lying outside the plasma membrane of the cells of plants, fungi, and bacteria. In the algae and higher plants it consists mainly of cellulose.
Explanation:
Answer: The bright colors will attract insects that can carry the pollen needed for plant reproduction.
Explanation: Bright colored plants help plants with reproduction, which is an advantage for the flowers because plants will continue to grow & reproduce.
Answer:
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Explanation:
About 95 percent of the time, Down syndrome is caused by trisomy 21 — the person has three copies of chromosome 21, instead of the usual two copies, in all cells. This is caused by abnormal cell division during the development of the sperm cell or the egg cell.