An ocean food chain is shown. which organism gets its energy directly from the sun? a. phytoplankton b. krill c. fish d. sea lion

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

Using the periodic table, determine which material is most likely a good conductor

Ineed some everybody. the production of cells during mitosis into specialized function is called: recombination or differentiation