benefits of studying organisms in a classroom habitat compared to organisms in their natural habitat?

Match the letters with the correct terms

The blue segment below is a diameter of oo. what is the length of the radius of the circle?

Which of the following best describes the purpose of a nation’s boundaries? a. to limit the movement of goods and people b. to make it easier for cartographers to create maps c. to make the movement of goods and people easier d. to prevent other countries from invading territory