The answer is b, chromatin
Answer: Dont quote me on this but im pretty sure its south and north
Explanation: because of the north and south poles have the strongest gravatational pulls it combines with the moon rotating and causes stronger tides
The oceans, lower atmosphere, and continents are parts of the biosphere.
The biosphere is composed of the parts of planet Earth where life exists and it is the total of all the ecosystems. The biosphere along with lithosphere (rock), hydrosphere (water) and atmosphere (air) are the four layers that surround the earth. The biosphere covers a wide area from the deepest root systems of trees, to rainforest, to the ocean depth and high mountaintops. The biosphere contains living organisms and nonliving things from which they obtain energy and nutrients.