Answer:
How Giant Tube Worms Survive at Hydro thermal Vents. In a process called chemo-synthesis, symbiotic bacteria inside the tube worm use hydrogen sulfide spewed from the vents as an energy source for themselves and for the worms.
Explanation:
Asexual means by self sexual means from opposite genders
Nonpoint source pollution comes from several locations. If they cannot find the origin of the pollution it can be almost impossible to regulate. Or they may not have enough funding.