Alyssa observed a flock of small birds in her yard. The birds visited a pair of feeders that her parents put out for them and splashed in the birdbath. Which question is a nonscientific question that she might ask about the birds? Which among the birds that visited the feeders is the most beautiful?
Does having a birdbath present affect the feeding habits of the birds?
At what time of day do the most birds visit the feeders?
Would the birds still visit if the seed in the feeders was changed?

The difference between amphid and plasmid

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

If water were a non polar molecule, how would its properties be different ? a.) water would be a much lighter molecule b.) water would be able to climb up inside plants c.)water would not be able to form hydrogen bonds d.) water would stick together much more strongly