Archaea and eubacteria are primarily different in
a. genetic make-up and biochemistry
b. size and shape
c. method of reproduction
d. symbiotic relationships

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

Which of the following is not a food produced in rainforests? a) coffee b) cocoa c) avocados d) wheat

What is a dendrite and what does it do?