The carbon cycle - CO2 is fixed into biomolecules.
Answer:
A network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane.
Explanation:
The endoplasmic reticulum is a type of organelle found in eukaryotic cells that forms an interconnected network of flattened, membrane-enclosed sacs or tube-like structures known as cisternae.
Answer:
I think A, "Primary pollutants from a stationary source"
Explanation:
Got it right on exam :)
its letter b the genetic drift because it is mechanism of evolution in which allele frequencies of a population change over generation due to chance.