When a cell is preparing to divide, it makes exact copy of all its nuclear dna. each chromosome then consists of two parallel filaments called what?

According to the loco mass the mass of reactants and products

The idea that all living things are made up of cells is considered scientific law. this means the idea is an emerging scientific idea that has a logical explanation. has been tested with similar results at least twice. is supported by scientific consensus and a large amount of evidence. has been rejected only once by the scientific community

Which is an example of a vestigial structure? a. tail of a monkey b. fin of a fish c. flower of a plant d. tailbone of a human