Select your answer:

Topics:
Types of Doctors Muscles and Healthy Body Ecology & Organisms Eye Physiology Bio Cells Circulatory System - Pathway of Blood Obstructive Lung Disease Respiratory System Virus Vision and Hearing Defects RDA Dental Caries The Teeth Immunology: T cell Development Water Macromolecules MicrorganismsOther quiz:
Circulatory & Respiratory System › ViewWhich body systems work together to make sure that oxygen reaches the cells from the outside environment and carbon dioxide is remove from the body?
A. Circulatory and excretory
B. Circulatory and respiratory
C. Respiratory and excretory
D. Respiratory and skeletal
Mitosis for Mya › View
In what phase of mitosis do pairs of chromatids become attached to the fibers of a spindle?
A. Prophase
B. Telophase
C. Metaphase
D. Anaphase