Scientists are looking for signs that Mars could have been habitable in the past. Think of the things that a planet needs to be habitable. With these things in mind, what signs of habitability would you look for on Mars?

What is a compass? how does it work

Where does oxidative phosphorylation take place

Alaina wants to decide whether her current cell phone plan is better than a package that another company offers. to compare the two plans, she plotted two lines on a graph, where y represented the total cost of one month’s service and x represented the megabytes of data that she used in a month. which part of the graph will represent the cost per megabyte of data used in each plan?