Biology, 21.05.2020 20:07 granthazenp5e9mj
Stress can be measured by the amount of a certain chemical found in saliva. Subjects must be sure to get saliva samples twice a
day at least 1 hour after eating or brushing teeth. In a study of 100 subjects, researchers tried to find a correlation between stress
levels and the wake up time of the individual. Which factor would NOT be an effective control that experimenters should add to
the experiment?
A) subjects are given the same diet
B) subjects are selected in similar age groups
C) subjects are selected with the same occupation
D) subjects are awakened at the same time everyday
Answers: 2
Biology, 22.06.2019 01:00
If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly
Answers: 2
Biology, 22.06.2019 03:10
Why is the theory of evolution important? it disproves all other theories about how life began. it provides a topic for debate. it is a unifying concept in biology. it explains how life began. i know for sure, it is not "it is a unifying concept in biology."
Answers: 2
Biology, 22.06.2019 09:00
Which are characteristics of flukes? check all that apply. a they are free living. b they are a type of flatworm. c they reproduce sexually. d they have eyespots. e they are segmented.
Answers: 2
Stress can be measured by the amount of a certain chemical found in saliva. Subjects must be sure to...
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