The range for a normal resting heart rate is 60 to 90 bpm. a trained athlete could have a resting heart rate of 45 to 60 bpm. why might a very fit person have a slower heart rate than someone of average fitness? 1 pt

What type of competition exsist between two species. turtles and fish

Astudent reads the following text in a science book: scientific evidence tells us that the cause of earths four seasons is the tilt of earth as it revolves around the sound the student is instructed to illustrate this information in a science book. how will the student illustrate winter in the northern hemisphere? a. earths northern hemisphere will tilt away from the sun. b. earths northern hemisphere will tilt toward the sun. c. earths orbit will be farther away than from the sun d. earths southern hemisphere will tilt away from the sun.

What controls activities within a eukaryotic cell?