I learned this in class! the answer is c
The myosin filaments remain in place as they pull the actin filaments inward!
Answer:
Honestly, while Hydrogen appears to be in group 1, it really isn't. It is unique, and has no characteristics similar to others, especially to the alkali metals in group 1 and halogens in group 17.
Hydrogen only shares one thing with alkali metals. It has one electron in the outermost shell, and has a valency of one. As far as halogens go, Hydrogen is a reducing agent, and halogens are known for being oxidizing agents.
So, I can say that more research needs to be done on Hydrogen. In the meantime, it is quite unique. Thanks!
Answer: The difference between granites and basalts is in silica content and their rates of cooling. A basalt is about 53% SiO2, whereas granite is 73%. Intrusive, slowly cooled inside the crust.
Explanation: I hope that helped!