Ais a segment of dna that directs the development of some inherited traits and it has different forms called

a. allele; genes

b. cell; nucleus

c. gene ; alleles

i believe the correct answer from the choices listed above is the first option. the scientists need to look at the   validity of data, claims, hypotheses, and observations before  developing an argument. they base their arguments on facts that are present and they make sure they have proofs. 

explanation:

one would be wind another would be water density

answer: blah

explanation:

bc blah

he movement of air through earth's or any planet's atmosphere is called wind, and the main cause of earth's winds is uneven heating by the sun. this uneven heating causes changes of atmospheric pressure, and winds blow from regions with high pressure to those with low pressure.

i hope this : )