Blood? I know that if a blood vessel pops in your brain, you will most likely die. Dont get upset if it's the wrong answer. I've just heard it before.
Natural Selection is the process of those who have not evolved over time to be picked off by either predators or the environment. Evolution is the result of a species being altered in some way to adapt to their new environment to survive.
The sporophyte generation produces spores that grow into a GAMETOPHYTE.
Answer:
its passive transport
Explanation:
The sodium-potassium pump sets the membrane potential of the neuron by keeping the concentrations of Na+ and K+ at constant disequilibrium.
Blood vessels, ligaments, muscles, and skin pigment.
