How's online school going for y'all ?

Which of the following is found in the cavities of bone? periostreum endostreum fibrous tissue bone marrow

Which can be an effective way to reduce stress? getting in the habit of doing things perfectly the first time engaging in a fun physical activity on a regular basis taking an antacid for a stress-based stomachache studying extra hard the night before a test

What angle should your knees not bend past when squatting? a. 30 degrees b. 45 degrees c. 90 degrees d. 120 degrees