Astudent states that exercise will affect the number of times a person can squeeze a clothespin in a certain amount of time. an experiment is carried out to test this hypothesis. a group of 10 students sits quietly before squeezing a clothespin as many times as possible during a time period of 1 minute. a second group of 10 students does 25 jumping jacks before squeezing a clothespin as many times as possible during a time period of 1 minute.

what is the dependent variable in the experiment described above?

question 1 options:

a. type of exercise

b. number of times a person can squeeze a clothespin

c. number of students in each group

d. amount of time spent exercising

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

The last few miles of the marathon are the most difficult for heather, her hair plastered to her head, sweat clinging to her arms, and her legs already feeling as if they had nothing left, just dead weight. after grabbing a cup of ice water, she feels the ice cubes smash against her nose as she gulps some cool refreshment and keeps on running. in these last few miles, the breeze kicks up and she finally feels some coolness against her skin. drips of sweat, once clinging to her forehead, now spill down, and heather feels more pain as the sweat flows into her eyes.which of the following is the most likely reason why the ice struck heather’s nose when she took a drink? a) water can function as a solvent. b) water can store large amounts of heat. c) water can moderate temperatures through evaporative cooling. d) the density of water decreases when it freezes. e) water has a cohesive nature.sweat remained on heather’s forehead and arms because of the a) high salt content of sweat b) cohesive nature of water c) ability of water to moderate heat d) high evaporative cooling effect of water e) ability of water to act as a solvent

Chromosome 17 is made of over million base pairs.