Molecular marine biology, marine genomics, and proteomics have recently shown that microbes interact as critical influencers of A carbon and silicon cycling in the oceans.
B carbon and oxygen cycling in the atmosphere.
C carbon and oxygen cycling in the oceans.
D carbon and silicon cycling in the atmosphere.

What are two ways in which waves erode the land?

Ablastocyst is a group of cells that forms after a human egg is fertilized. the blastocyst consists of two types of cells. some of these cells will become the placenta. what do the other cells develop into?

The table shows dates and appearance of index fossils. which rock layers can be dated most precisely? a) a layer containing both a fossil 4 and a fossil 3 b) a layer containing both a fossil 2 and a fossil 3 c) a layer containing both a fossil 1 and a fossil 4 d) a layer containing both a fossil 1 and a fossil 2