Which of the following is listed in order from simplest to most complex? A. mitochondrion, muscle cell, smooth muscle tissue, esophagus, digestive system
B. muscle cell, mitochondrion, smooth muscle tissue, esophagus, digestive system
C. mitochondrion, muscle cell, esophagus, smooth muscle tissue, digestive system
D mitochondrion, smooth muscle tissue, muscle cell, esophagus, digestive system

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

The negative impacts of nonnative species generally outweigh the positive impacts

As the pea seeds respire, the level of coloured liquid in the left hand part of the capillary tube rises. by referring to what is happening in the apparatus, explain why the level of liquid changes