What simple machine did the ancient egyptians use to them build the pyramids?
a. inclined plane
b. pulley
c. lever

Jasmine, at 33 months of age, is able to engage in some self-care behaviors but still has trouble with tasks such as putting on socks. a few months later, she accomplishes this same task relatively easily. the change in abilities is most likely due to

What is a group of organisms that are closely related and share similar characteristics

To be or not to be that is da question