Connecting the concepts: levels of biodiversity what are the levels of biodiversity, and how are they valuable? part a drag the labels onto the concept map to review the ecological value and practical benefits of biodiversity. first fill in the pink targets using the pink labels. then complete the rest of the concept map using the blue labels. ecosystem diversity species diversity ecosystem services species survival genes with practical uses genetic diversity community interactions new medicines

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 describes a difference when gram-positive bacteria are compared to gram-negative bacteria?

Prior to the mt. st. helens eruption on may 18, 1980, satellite and topographic views of the volcano were captured. based on the topographic map of mt. st. helens, what is the contour interval if the volcano height is 2,950 m? question 9 options: 600 m 400 m 750 m 500 m