Part D The idea of molecular clock genes has been studied for decades, but the hypothesis remains a controversial topic in
evolutionary biology. Why do you think that is the case? What are three questions you still have about the use of
molecular clocks?

Mitochondria produce atp, a high energy compound. atp is used for all sorts of enzyme-mediated reactions, such as making proteins/nucleotides/etc, certain compounds cross the cell membrane, muscles move, etc.  without this source of energy, a cell will die. it will not be able to repair itself, defend against pathogens, etc.

When scientist examine data such as historical documents, they are using the "scientific methods"

Hello there.3. which type of muscle has muscle cells that connect to one another at junctions called intercalated disks? a. striated voluntary muscle b. nonstriated involuntary muscle c. striated involuntary muscle d. nonstriated voluntary muscleanswers:   striated involuntary muscle