An action potential involves the transfer SODIUM and POTASSIUM ions across an axon's membrane.
During depolarization, when the ion channels open, they allow the influx of sodium ions into the cell, thus changing the electro-chemical gradient of the cell, in order to counter balance this, potassium ions will be allowed to flow out of the cell.<span />
answer: binary fission
explanation:
binary fission is when a single celled organism divides to asexually reproduce two new organisms
Answer:
e) Invertebrates lack a nervous system
Explanation:
One of the main characteristics of invertebrates is that they don't have a backbone. Backbones belong to the skeletal system. A totally different story is the nervous system which runs inside the backbone. Although the more complex nervous systems appear in vertebrates the simply fact of having eyes like crabs or insects implies having a nervous system that can control them.
Answer:
Number of molecules= 9.34 * 6.022*10^23 = 5.6245*10^24 molecules.
Explanation:
The endosymbiotic theory states that eukaryotic cells might have evolved from prokaryotic cells through a close realtionship.
