oxygen
dick
when parents make babies that is sexual and asexual would like pollination
they need plants as food,gravel,water,elodea,and duckweed
An organism needs energy and constant supply of materials to grow and develop.
The need for a change itself. For example, the need to migrate in order to keep up with food sources would bring an organism into another territory that their bodies might not be adjusted to. Rather than dying off, the "fittest" organism of that breed might mate with another "fit" organism, and after - guessing - 20 generations or so, genetic changes will have made that territory the most suitable environment for that organism.
Extreme pressure.
I don't know that's why I need help...
They need to adapt to high pressure in the (low part of the ocean) deep ocean.
Environmental dangers caused by dependence on fossil fuels
need for environmental control
you stupid you have your own body then you can take an example of it that why di you need a body you are not an organism that you can live without BODY..
These two organisms cannot be asexual, if so then they need no mate. In order to reproduce they would need one organism to have male reproductive organs and the other organism to have female reproductive organs. This way they can reproduce sexually. The two organisms must also be of the same species. For example, a male dog and a female cat can't mate, but two heterosexual dogs can.
yes
Bacteria do not need a host organism to live and multiply.
All organisms need water to survive. water helps homeostasis of an organism's body and acts as a universal solvent for the body's pH.
the environmental impact of plywood is that dfferent types of trees need to
You need a BS in Applied Science and a MS in environmental engineering. This website offers great information about the industry-www.ecojobs.com/environmental-science-and-engineering-jobs.htm