A chromosome is best described as a

Green cell found in many plants

Gene that has more than one form
Reproductive cell found in certain kinds of bacteria
Strand of DNA containing genetic information

all matter is made up of atoms

in any element all atoms are the same

elements in a compound are always in a constant ratio: apex

i wish i could with all of them i can barley see the first one so here's the answer to the first one b

straight probes are used primarily for measuring flow as it is approaching the test area. its geometry allows the probe to be mounted so that it is in the direct line of airflow.