Learn to identify the four main types of genetic recombination—conjugation, transformation, transduction, and crossing over—from diagrams or descriptions.
Some sports burn far more calories than others, but injury risk, muscle gain, and consistency often matter more for weight loss than raw calorie count.
Blueberries have deep roots in North America, from Indigenous use to early 20th-century domestication. Here's how they went from wild forests to global farms.