★ Pathogens, Disease and Immunity Quiz
Which type of external defense is not considered a ‘first line defense’.
A. Lymphatic Organs
B. Tears
C. Saliva
D. Skin (epithelial cells)
E. Mucous and cilia
Select your answer:
Topics:
The Respiratory System History of Immunology Bones Integumentary System Medical Terminology Genes and Cells Entomology Regulation of Heart Rate Respiration Pituitary, Thyroid and Adrenal Bariatric Surgery and Diabetes Carbohydrates Joints in our Body DNA and RNA Structures Hematology Acute Leukemias SomatotypesOther quiz:
The Human Eye › View Which image shows a person with farsightedness?
A. A
B. B
C. C
D. D
ADVBIO Genetics › View
Which describes why the twins shown are not exactly alike?
A. Mutations occured to change traits
B. Epigenetic changes were caused by environmental factors
C. The twins have different DNA
D. The twins are identical.