No, you do not capitalize marine biologist in a sentence. (Unless marine is in the beginning of the sentence)
Marine biologists use hydrophones to record underwater sounds.
"The marine biologist was looking forward to studying the octopus."
"Are you still in the marine?"
E.T. stands for extra terrestrial. Amphibians are comfortable in marine environments and terrestrial environments.
This looks like a job for a marine surveyor.
When writing a sentence
under what conditions may you be exempt from using marine charts and nautical publications
Using petroleum in a sentence?
"When you do aerobic exercises, you keep your heart healthy." "Most marine animals are aerobic, requiring oxygen for their metabolism."
The sentence is the one you just said. What is a sentence using stipulate.
I am not writing a sentence using that word.