Select the three statements that are true of the Crusades: They brought about greater fighting among the landowners in Europe.
They brought about the breakdown of the medieval way of life.
They failed to rescue the Holy Land permanently from the Muslims.
They created a demand for Eastern goods.

Which events are likely to be catastrophic to an ecosystem? select the three correct answers.a-hurricane.b-steady population growth.c-seasonal flooding.d-introducing of an aggressive invasive species.e-tsunami.

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

Actual age your first developed of age well comparison age refers to absolute age true or false