Which question cannot be tested with a scientific investigation? adrian is a researcher who works in a lab. he decides to perform an experiment to understand the side effects and benefits of drinking tea. he puts forth some questions about the experiment. they include, { do people who drink tea have a higher risk of brain illnesses than non-tea drinkers? } and [ do people who drink tea stay more alert than non-tea drinkers? ] he also proposes a question, [ are people who drink tea happier than people who don’t drink tea? ]

Agroup of students is studying convection currents. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other in an area with warm air. after 10 minutes, the balloons are released from a height of 1 meter. which of the following do the students most likely observe? question 8 options: the cold balloon expands and rises. the warm balloon shrinks and sinks. the balloons rise at the same rate. both balloons are the same size. the ballons both rise. the cold ballon is larger than the warm balloon. the warm balloon expands and rises. the cold balloon shrinks and sinks.

What controls activities within a eukaryotic cell?

The frequency of alleles in a population that is in hardy weinberg equilibrium? a . changes in each successive generation b. is less important than the frequency genotypes c. shows evidence of the process of natural selection d. remains the same over several generations