Answer:
C, a long absolute refractory period.
Explanation:
Tetanus is not possible in cardiac muscle tissue because cardiac cells have longer action potentials and a very long refractory period compared to other cells. This helps prevent the heart from cramping and seizing up.
To show the different levels of classification and divide among species, and different organisms on planet Earth. It also creates a universal "language" for scientists around the world when referring to organisms (cougar & puma are the same animals; different name)
Example: The American Alligator and the Chinese Alligator (look it up!) are in the same family and genus, but are not the same species.
From the options, I would say it would be option B.
Answer: Lactobacillus
This kind of cell would be considered a friendly cell, a cell that would protect your body. But, it's more into animals then anything else. But, there's all kind of these kind of cells, that's why they can be into any kind of animal and human. Hope this helps.
Explanation:
Both prokaryotic and eukaryotic cells have:
DNA.
Ribosomes.
Cytoplasm.
Plasma membrane.
