What is the basic difference between a substance's physical and chemical properties; and how are they useful to scientist's

Adoctor is trying to diagnose a patient with dry skin. which of the following resources would be the most ? a magazine ad about soft skin a growth chart online articles about dry skin medical books

Which of the following is one way in which organisms such as clown fish and sea turtles are able to overcome the many dangers that their offspring encounter and ensure that their species population numbers stay relatively steady

How did the work of farmers and breeders in england influence the work of charles darwin