What might happen to the food web if the number of phytoplankton drastically decreased

When the number of phytoplankton drastically decreased, this would affect the entire food web.

Phytoplankton are plankton consisting of microscopic plants. They are the autotrophic components of the plankton community and a key part of oceans, seas and freshwater basin ecosystems.

this protocol provides a detailed procedure for co-immunoprecipitation (co-ip) to identify protein–protein interactions.

the answer is b.) hydrogen bonds between bases.