A student wants to know how different activities affect heart rate so she records the heart rate of another student after sitting for 5 minutes and takes it again after the same student runs in place for one minute.
Which is the dependent and which is the independent variable?
Column A
Column B
1
Type of exercise
a. dependent variable
2
Heart rate
b. independent variable

What is the process of a new plant growing from its seed into a seedling? primary growth fertilization pollination germination

The table presents the average day and night temperatures in five cities. it also reveals whether a city receives substantial rainfall (wet climate) or little rainfall (dry climate). which city’s rocks are likeliest to experience frost wedging, and why? a) city a because the consistently subzero temperature would prevent water from melting b) city b because it is a wet region and the temperature fluctuates around the freezing point c) city c because it receives plenty of rain fall and the weather is moderately cool d) city d because the hot and dry weather would cause rocks to absorb water

How far down have geologists drilled holes ? (science) a: 3.8 km b: 12 km c: 100 m d: 1200 km