Answer: the correct option is : highly developed cell- cell communication.
Explanation: In complex multicellular organisms, cell - cell communication also known as cell signalling is part of any communication process that leads basic activities of cells and coordinates multiple cell functions.
It basically allows them to see what time period it is from or from where it is from (they predict from the age). It also allows them to arrange geological events more accurately depending on where the rock was found.
That is false
Comment if you need an explanation why
The type of fat which is most likely a solid at room temperature would be saturated fat. If you think of olive oil and canola oil, both of them are liiquid at room temperature. If you're thinking of lard, it's hard at room temperature.