Select all that apply. Two great science and mathematics ideas from the Gupta Empire are
the prediction that the earth was round
major advances in calculus
the belief that the earth rotated on an axis
invention of the binary system

Natalie had random hand movements when she was two months old. when she was six months old, she used to grab a block with her whole hand. now at the age of ten months, she can grasp the same block with her thumb and forefinger. this sequence of growth in her hand and finger movements is according to the pattern.

Environmental differences within ecosystems are generally caused by

Which statement describes compounds a. compounds are made of one type of atom. b. compounds cannot be represented by models. c. compounds are represented by chemical formulas. d. compounds cannot be broken down into simpler forms.