Mei wants to study whether heart rate increases more during certain exercises than during others. she designs an experiment
to test the heart rates of classmates in the moming and in the evening for three days, immediately after doing jumping jacks
doing push-ups, or running in place. what is the dependent variable in this experiment?
o classmates
o type of exercise
heart rate
o time of day

hey, what do you need . just post the question and i may be able to you : )

the correct answer is sex-linked recessive.

i just took the test

weathering - colorado river carves land in arizona to form the grand canyon. cracks form in a sandstone wall surrounding a house. a marble statue near the science museum is changing color due to rainfall

erosion - after a rainstorm, soil and rock piees litter the roadways. the sand dunes in the sahara desert are changing shape.

here's your answer.