Answer:
hope this helps
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.
I believe it is A, I’m torn between A and D but I’m not sure.
A reducing sugar is any sugar that either has an aldehyde group or is
capable of forming one in a reaction thru isomerism. The first example
that should come to mind is glucose, which can form a <span>β(1→4)</span>
linkage. Sucrose, on the otherhand, is a non-reducing sugar. And is
bascially the opposite of a reducing sugar. It doesn't form or have
aldehydes in a basic environmet.Hope this helps!!
Answer:
C. bright colourful flowers.
Explanation:
hummingbirds (and other insects and birds) are attracted to bright colours and sweet scents