We have heard that we are a product of our DNA. Specific genes in the chromosomes we inherit from our parents help determine the traits we
inherit. Using the illustration identify the letters that represent the
three structures mentioned: DNA, chromosome, and gene

the correct answer is option b

behavioral response need communication and thus co-ordination at several levels such as interaction among cells, organ system and the entire organism.

behavioral response produces both internal and environmental stimulus.

c: warm water flows from the western tropical pacific toward south america. that should be the right answer! hope it .