An increase in the concentration of ATP in a mus- cle cell is a direct result of which life function? (1)
respiration (2) reproduction (3) digestion (4) ex-
cretion

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 was not a major animal on land during the carboniferous period? amphibians insects both a and b none of the above

Stem cells found adult tissue such as in bone marrow brain muscle skin and liver are only capable of what