Biology, 18.02.2021 18:40 rebeccathecatt
Student obtain a dear image of window bars on a screen with the help of a convex lens. But
in order to have the best image, his teacher suggested him to obtain the image of a distant tree
Where will the lens has to be moved in order to obtain a clear image?
a, away from the screen
b. behind the screen
c. towards the screen
d. at a very long distance from the screen
Answers: 3
Biology, 21.06.2019 20:00
Researchers randomly divide participants into groups. each group takes a different amount of omega-3 fatty acid supplements daily for a month. one group receives a placebo. the researchers measure the impact on cholesterol levels in the blood. what is the purpose of random assignment in this experiment? a, to produce treatment groups with similar characteristics b, to ensure that all people with high cholesterol have an equal chance of being selected for the study c, to increase the accuracy of the research results and prevent skewness in the data
Answers: 1
Biology, 22.06.2019 01:30
Amylase becomes denatured at a temperature of 80°c. during an experiment to study the effect of varyingtemperature on enzyme activity, amylase’s reactivity with starch was measured at body temperature (37°c), andthen again at an increased temperature of 42°c. how would this increase in temperature affect the experiment
Answers: 1
Biology, 22.06.2019 11:00
Which of the following are not included as modern mammals that evolved during the eocene epoch? primates artiodactyls perissodactyls none of the above
Answers: 1
Student obtain a dear image of window bars on a screen with the help of a convex lens. But
in order...
Mathematics, 29.04.2021 17:30
Mathematics, 29.04.2021 17:30
Mathematics, 29.04.2021 17:30
Computers and Technology, 29.04.2021 17:30
Computers and Technology, 29.04.2021 17:30
English, 29.04.2021 17:30
Mathematics, 29.04.2021 17:30
History, 29.04.2021 17:30