Allen and andrew have the same biological parents. why do they not resemble either of their parents? a) each child receives only paternal genes. b) each child receives only maternal genes. c) each child receives only half of each parent’s genes. d) each child receives genes from only one of the parents.

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

Based on the topographic map of mt. st. helens, what is the contour interval of the volcano about height is 2,950 m?

In the respiration-photosynthesis cycle shown above, what are the products of cellular respiration that belong in box 2?