Which ONE of the following ultrastructural features is believed to allow for the increased permeability of the vascular endothelium in acutely inflamed tissue?

A. Cytoplasmic micropinocytotic vesicles.

B. Gaps in endothelial tight junctions.

C. Gaps in the basement membrane.

D. Increase in number of phagolysosomes.

E. No morphological changes.

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 technology that can be used to conserve resources? a. hydropower b. volcanic power c. natural gas d. geothermal select the best answer from the choices provided a b c d

The most effective way to provide children with safety messages is to