Which terms best describes our atmosphere?
a. constant, stable, unchanging
b. layered, non-interactive, static
c. dynamic, interacting, constantly changing
d. static, stable, similarities in the layers prevent interaction

Drag each label to the correct location on the image. each label can be used more than once. a scientist introduced mutations in a gene sequence isolated from bacteria. study the sequence, and identify the steps where the mutations may affect the formation of proteins. in the sequence, black letters stand for protein coding regions and red letters stand for noncoding regions. protein will not be changed. protein may be changed. attcgtgttc atcgtgttc atcgtattc attcgtattc

What are levels of ecology and how can we remember them

What are positive impacts of algae? how is it used?