Your roommate is an avid runner. she runs at least 3 miles every day and generally runs 6 to 8 miles
on the weekends. researchers have suggested that people who run are more likely to have free
radicals, which can be damaging to cells. the presence of what substance might to reduce the
damaging effects of free radicals?

Study the image of this rock.which characteristic best supports its formation from sedimentary processes? it has many layers.it is coarse-grained.its grain shape is round.its texture is non-banded.

After reading the paragraph below, answer the questions that follow. researchers have created a robot that has a very thin leg that is moved by cardiac (heart) cells contracting in unison. the robot, made of a polymer similar to that used in making contact lenses, is bathed in heart cells with supporting cells, which then attach to the robot and provide movement as they contract. all of the cardiac cells working together can cause the robot leg to move in a way that individual cells could not. this is an example of a. emergent properties of cells. b. energy flow through an ecosystem. c. adaptation. d. internal environment regulation.

Me with these questions if you’re it sure don’t answer