How do scientists analyze pictures of chromosomes to identify the pairs and develop a karyotype? A.)parents
B.)order
C.)color and odor
D.)size and shape​

D) size and shape

Explanation:

they would look for 2 chromosomes that look alike to develop a karyotype

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs