Enters the atmosphere through respiration and the burning of fossil fuels.
a. nitrogen
b. carbon dioxide
c. oxygen

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.

Differentiation of cells changes the nucleic information. true false

Graphs you see question 5 options: the change in data over time the relationship between different dependent variables the relationship between the independent variable and the dependent variable/s the relationship between different independent variables