The purpose of a neuron is to receive incoming information and then relay that information to other neurons, muscles, glands, etc. they do this through electrical signals called nerve impulses or action potential.
You can increase positive impact on the environment in many ways build more bird houses for the birds clean up dirty streams and creaks
Sponges are a type of aquatic animal whose body is covered in tiny pores called ostia. The ostia allow water, oxygen, and other nutrients to flow into the sponge's body, and for waste products like ammonia and carbon dioxide to exit their body. The respiratory system of a sponge is based on the process of diffusion.
No, because a single observation on one planet is not sufficient to discredit a theory.
There are too much variables that would cause that data, and just observing one planet is the same as ignoring all the potential variables.
