Select your answer:
Topics:
Molecular Genetics Integrated Science Diseases Careers in Health Care Population Genetics Genetics and Censorship Viruses The Brain Principle of Health Science Gestalt Therapy Eye and Ear Wellness Vocabulary Organ Systems Meiosis and intro to Genetics Chronic Diseases Metabolic SauverOther quiz:
Genetics › ViewOne of the threadlike structures in the nucleus of a cell that contain directions for the cell’s activities
A. variation
B. pedigree
C. DNA
D. chromosome
Nervous / Sensory System › View
What is the middle ear filled with in a healthy ear?
A. endolymph
B. perilymph
C. air
D. water