(2) b) What class of arthropods is mainly involved in the pollination
process?
c) What role does this group play in the pollination process?
d) What effect will the elimination of this class of pollinators have in
an ecosystem?
no arthworms in the
(3)

Which statement is true about the cell theory? a) it is well-supported by evidence. b) it is unchangeable and permanent.

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

When analyzing tree rings, what do scientists assume a thin ring indicates?