Which phrase best describes the Electron Transport Chain (ETC). the energy from electrons is used to make ATP
pyruvate is broken down into 6CO2, 2ATP, 8NADH and 2 FADH2
glucose and oxygen are used to make energy (ATP) for the body to use and H2O and CO2 as waste
oxygen is not present and fermentation must occur

You will create a molecular clock model for an arthropod gene. follow these guidelines to make your model: . your timeline will span from 90 million years ago to the present. the common ancestor in your model is an arthropod that lived 90 million years ago. the gene that you'll track codes for a protein in the species venom . the dna sequence youll track contains 10 nitrogen bases. you can choose the order of the bases and where the mutations occur. this gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. to build your model,/ calculate the estimated time period it takes for 1 base pair to mutate. the first time period will only show the common ancestor. at the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences. the first and third descendant species will survive for the rest of the timeline. the second descendant species was extinct 50 million years ago. calculate how long it will take for one full base pair mutation to occur. explain your reasoning by constructing a mathematical equation

Some scientists argue that global warming is related to buming fossil fuels to produce energy o increased use of fertilizers loss of forested areas a of the above

According to cell theory; which structures carry out the basic function of living things? a. atoms b. organs c. cells b. nuclei