What process is most directly involved in oil formation? A: formation of fossils of sea organisms over many years
B: changes in the ocean environment
C: breakdown of marine organisms’ remains under layers of sediment
D: erosion of sediments on the sea floor

Which of the following will a bacterium produce when a human gene is added to its genome? question 4 options: human carbohydrates a protein made up of both human and bacterial properties the human protein coded for by the human gene human plasmids that can be isolated from the bacterium

Humans have to eat food to get the nutrients that keep us alive, but plants use the sun to power photosynthesis

What is an example of excretion in mammals?