Explain the relationship between a hypothesis and a theory. Then give an example of
something that would cause a hypothesis or a theory to be revised or discarded. (5 points)

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Hedgerows have created a new ecosystem within britain’s a. farms b. cities c. forests d. industrial areas

In a cladogram, what occurs at a node? a derived trait appears. evolution is stopped. an ancestor dies. the cladogram ends. aa as s as ss what are the chances that their offspring will have sickle cell anemia? 0% 25% 50% 100%