Which of these energy sources would be classified as a non-conventional fossil fuel? *
a. Coal from surface mining
b. Tar sands oil
c. Ethanol derived from corn
d. Hydroelectric

There are specialized producers that live in warm water vents deep in the ocean. these producers do not per-form from photosynthesis, but instead perform a similar process with iron and other chemicals. why do you think these producers use this process instead of photosynthesis?

Which is one example of a phenotypic change that is not genetic

Match the functions to the cell types ? contraction and relaxation. conducting electrochemical signals fighting diseases carrying genetic material