Two enemies confront one another in a forest. then, a tree falls, pinning them both to the ground. what kind of conflict exists in both situations?

Which two levels of the spine that can undergo flexion and extension?

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4

When children are young and go to the doctor, the doctor will give them booster shots. this re-exposes the children to a dead portion of a disease to them build immunity.