.
How does the great-impact hypothesis explain the differences in density between the Earth and the moon?
The moon was formed from lighter elements contained within the solar nebula.
The moon was created from Earth’s mantle and crust.
The moon was created from core material ejected in a natural nuclear explosion
The moon came from elsewhere in the solar system.

How is mitosis different in plants and animals? a. in animals, the cell membrane pinches together. b. in plants,the dna is one circular chromosomes. c. in plants, there are no sister chromatids. d. in animals, a new cell wall forms.

What is the next step in the process after a substrate enters the active site of an enzyme

In an experiment examining the effects tai chi on arthritis pain, callahan (2010) selected a large sample of individuals with doctor-diagnosed arthritis. half of the participants immediately began a tai chi course and the other half (the control group) waited 8 weeks before beginning. at the end of 8 weeks, the individuals who had experienced tai chi had less arthritis pain that those who had not participated in the course.